Monitors / Compare

CORSAIR Xeneon 27QHD240 OLED vs LG UltraGear 27GX704A

A

Product A: CORSAIR

Xeneon 27QHD240 OLED

88 of 172 known

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B

Product B: LG

UltraGear 27GX704A

90 of 172 known

Change LG UltraGear 27GX704A

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All 172 fields

Every value links to where we found it.

Only differences

ACORSAIR Xeneon 27QHD240 OLED

BLG UltraGear 27GX704A

General

5 of 8 differ

Series

Xeneon1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Product name XENEON 27QHD240 OLED.

UltraGear OLED1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The UK title says UltraGear OLED GX7 Gaming Monitor.

Model numbersiMaker identifiers for this exact model and its listed variants. Excludes sibling models and other generations.

CM-9030002-NA, CM-9030002-PE, CM-9030002, RDD00232Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Part Number CM-9030002 and Device RDD0023. The US page lists SKU CM-9030002-NA. The EU declaration of conformity names model RDD0023.3Maker product pagecorsair.com/eu/en/p/monitors/cm-9030002-pe/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-peRead 10 October 2026EU store page lists SKU CM-9030002-PE with the same Tech Specs table as the US page.4Regulatory filingassets.corsair.com/image/upload/v1786601145/downloads-prod/CE-000561.pdfRead 10 October 2026EU declaration of conformity CE-000561, dated 30 May 2023, names product Monitor, model RDD0023.

27GX704A-B, 27GX704A-B.AUS, 27GX704A-B.AEK, 27GX704A-B.AEU, 27GX704A1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Page title and SKU 27GX704A-B.AEK.EEUK.UK.C. LG Germany lists 27GX704A-B.AEU and the US and Canada pages list 27GX704A-B.AUS. The EPREL model identifier is 27GX704A.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Title 27GX704A-B.AUS.4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Model identifier 27GX704A.7Maker product pagelg.com/de/monitore/gaming/27gx704a-bRead 23 October 2026SKU 27GX704A-B.AEU.EEDG.DE.C.

GTIN / EAN

Not available

195174133026, 8806096600047, 88060965999211Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026EAN 8806096600047 from the UK page data, EAN 8806096599921 from the Germany page data and UPC 195174133026 from the US spec sheet and the Canada page data.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026UPC 195174133026 for the US model 27GX704A-B.AUS.7Maker product pagelg.com/de/monitore/gaming/27gx704a-bRead 23 October 2026Page data lists EAN 8806096599921 for 27GX704A-B.AEU.

AnnouncediThe maker's first announcement of this model. This is separate from first retail availability.

March 20237Press articletftcentral.co.uk/news/corsair-xeneon-27qhd240-oled-27-monitor-with-240hz-announcedRead 10 October 2026TFTCentral news of 24 March 2023 says Corsair announced the monitor that week at PAX East. The exact day is not given.

Not available

Status

Available1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Current US product page lists the model with a Best Seller tag and firmware V106 downloads. Stock was not checked.

Available1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The UK, Germany and Canada pages carry an active status.

PredecessoriThe model this one directly replaced, in the same line, tier and size, as the maker or a trusted review names it.

Not available

Not available

SuccessoriThe model that directly replaced this one, in the same line, tier and size. A revision such as a Slim or OLED model does not count when a next generation exists.

Not available

Not available

Launch price (US)iThe maker's US launch MSRP for the stated configuration, excluding tax. Current store prices and later discounts do not qualify.

Not available

Not available

Launch price (EU)iThe maker's euro launch price for the stated configuration, including VAT as published. Current store prices and later discounts do not qualify.

Not available

€59913Press articlepcgameshardware.de/Monitor-Display-Hardware-154105/News/LG-Ultragear-27GX704A-B-OLED-mit-Preissturz-1492408Read 23 October 2026PCGH 2026-01-26 states a manufacturer UVP of 599 euro for Germany, and LG Germany lists 599 euro. The article gives no launch-day price, so 599 is the manufacturer list price and not a verified launch price.

MarketsiISO country or region codes where this exact model or variant is sold. A source page's language does not establish availability.

US, EU, GB1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026US store page with SKU CM-9030002-NA. The page also links an EU declaration of conformity (CE-000561) and a UKCA declaration (UKCA-000283).3Maker product pagecorsair.com/eu/en/p/monitors/cm-9030002-pe/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-peRead 10 October 2026Corsair EU store page, with a UK store page using the same SKU.4Regulatory filingassets.corsair.com/image/upload/v1786601145/downloads-prod/CE-000561.pdfRead 10 October 2026EU declaration of conformity CE-000561 for model RDD0023 with an EU authorised representative in the Netherlands.

US, CA, GB, EU1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026UK page and the LG Germany and Canada pages are active. The US spec sheet covers the US.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026US sheet.7Maker product pagelg.com/de/monitore/gaming/27gx704a-bRead 23 October 2026LG Germany page, status active.

ColoursiThe maker's own colour names

Not available

Black1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Page title ends with Black.

SegmentiFrom the maker's own product category. Office also covers home and everyday monitors.

Gaming1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Maker title: gaming monitor.

Gaming1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Sold as an UltraGear gaming monitor.

Display

5 of 12 differ

Screen sizeiDiagonal in inches exactly as the maker advertises it. A class size and the viewable diagonal can differ.

27in(68.6 cm)2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Panel Size 27 inch diagonal. TFTCentral says the panel is 26.5 inches.

26.5in(67.3 cm)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Size 26.5 inch (67.32 cm). LG markets it as 27 inch. The EPREL sheet gives 67.4 cm and 27 inches.

Viewable screen diagonaliDiagonal of the visible image area. This can be smaller than the advertised class size.

26.5in(67.3 cm)7Press articletftcentral.co.uk/news/corsair-xeneon-27qhd240-oled-27-monitor-with-240hz-announcedRead 10 October 2026Announcement: 26.5 inch sized screen. The maker publishes a 27 inch class size.

26.5in(67.3 cm)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Size 26.5 inch is the panel diagonal. The EPREL screen diagonal is 67.4 cm, which is 26.5 inch.4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Screen diagonal 67.4 cm, 27 inch class. Visible screen area 19.4 dm2.

Native resolution

2560 × 1440px2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Native Resolution 2560 x 1440 at 240Hz.

2560 × 1440px1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Resolution 2560 x 1440.

Aspect ratio

16:92Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Aspect Ratio 16:9.

16:91Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Aspect Ratio 16:9.

Pixel density

108.8ppi=CalculatedFrom Screen size and Native resolution

110.8ppi=CalculatedFrom Screen size and Native resolution

Pixel pitchiDistance between adjacent pixels. Source notes identify horizontal or vertical pitch if they differ. A horizontal figure about a third of the vertical one is the pitch of one subpixel, not of a pixel, so the pixel figure is stored.

Not available

0.2292mm1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Pixel Pitch 0.2292 x 0.2292 mm.

Active display areaiMaker published active-display width and height, excluding the external frame. Source notes distinguish image area from any published shift-reserve area. Dimensions are not inferred from native resolution or rounded pixel pitch.

Not available

Not available

Curved

Not available

Not available

Curvature radiusiRadius of screen curvature. A published 1800R is 1800 mm.

Not available

Not available

Screen surface

Matte1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Anti-glare section: a QWP polarizing matte non-reflective display. Tom's Hardware calls it semi-matte.

Glossy1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Key features: Glare panel. The US spec sheet says Glossy OLED Display.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 202627 inch QHD Glossy OLED Display.8Reviewrtings.com/monitor/reviews/lg/27gx704a-bRead 23 October 2026RTINGS text: glossy coating.

Anti-reflection coating

Non-Glare2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Display Surface Non-Glare.

Not available

Touchscreen

Not available

Not available

Panel

11 of 31 differ

Panel type

WOLED6Reviewpcmonitors.info/corsair/corsair-xeneon-27qhd240-240hz-qhd-oled-with-hdmi-2-1Read 10 October 2026PC Monitors listing of 23 March 2023: a 26.5 inch 2560 x 1440 LG Display WOLED panel with an RWBG subpixel layout.7Press articletftcentral.co.uk/news/corsair-xeneon-27qhd240-oled-27-monitor-with-240hz-announcedRead 10 October 2026Announcement: Corsair, LG and Asus 26.5 inch 240Hz monitors are all built around a WOLED panel from LG.Display. Corsair names it OLED META technology engineered by LG Display.

WOLED1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Key features and spec table: OLED. The feature text says LG WOLED. RTINGS lists the sub-type as WOLED.8Reviewrtings.com/monitor/reviews/lg/27gx704a-bRead 23 October 2026RTINGS review published 2026-04-24: panel type OLED, sub-type WOLED. RTINGS calls it a third-gen WOLED panel. Notebookcheck calls it second-gen, so no panel generation is stored.

Panel type (as published)iPanel or technology name as published. This is separate from the normalised panel type.

OLED2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Panel Technology OLED.

OLED with MLA+1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature heading: OLED with MLA+ (Micro Lens Array+).

BacklightiLayout of the backlight. OLED is none (self-emissive). WLED or LED alone names no layout, so it is left out unless a source states edge-lit or direct-lit.

None (self-emissive)2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026OLED panel, each pixel is self-lit.

None (self-emissive)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026OLED is self-emissive.

Local dimming

Not available

Not available

Dimming zones

Not available

Not available

Panel maker

LG Display1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Page: OLED META Technology engineered by LG Display.

LG Display9Reviewpcmonitors.info/lg/lg-ultragear-27gx704a-b-240hz-glossy-oled-modelRead 23 October 2026PCMonitors describes a 26.5 inch 2560 x 1440 glossy LG Display WOLED panel.

Panel part number

Not available

Not available

Panel generationiGeneration or panel architecture name stated by the source. Brand product generation and panel generation can differ.

META1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Page: OLED META technology. TFTCentral says Corsair is the first to promote the META generation with MLA.

Not available

Subpixel layoutiArrangement of the red, green, blue and any white emitters within a pixel. Individual emitter shapes do not establish their arrangement. Marketing names such as Primary RGB Tandem do not prove an RGB stripe layout.

RWBG6Reviewpcmonitors.info/corsair/corsair-xeneon-27qhd240-240hz-qhd-oled-with-hdmi-2-1Read 10 October 2026PC Monitors listing: LG Display WOLED panel with an RWBG subpixel layout. Corsair does not publish the layout.

Not available

Colour depthiSupported total colour depth per channel. A stated 8-bit plus FRC implementation is 10 supported bits with FRC, not native 10-bit. A 6-bit plus FRC panel, also called Hi-FRC, is 8 bits with FRC.

10bits2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: 1.07B colors (10bit RGB).

10bits2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Product Specification: 8-bit/10-bit colour is supported.

Colour depth methodiNative panel bits or temporal frame rate control. Supported 10-bit input alone does not prove native 10-bit panel depth.

Native5Reviewtomshardware.com/reviews/corsair-xeneon-27qhd240Read 10 October 2026Review: both the Corsair and the Asus PG27AQDM panels have native 10-bit color.

Not available

Displayable colours

1.07 billion2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: 1.07B colors.

1.07 billion1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Color Depth (Number of Colors) 1.07B.

sRGB coverageiPercentage of the sRGB reference gamut covered. Gamut volume is a different measure and is not stored here. Source notes identify the colour-space standard.

100%2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Color Gamut (CIE 1976) 98.5% (DCI-P3), 100% (sRGB).

Not available

DCI-P3 coverageiPercentage of DCI-P3 covered. Do not substitute gamut volume. Source notes identify the CIE reference and any minimum or typical qualifier.

98.5%2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Color Gamut (CIE 1976) 98.5% (DCI-P3).

98.5%1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Color Gamut (Typ.) DCI-P3 98.5% (CIE1976). The minimum is 90.0% (CIE1976). The typical value is stored.

Adobe RGB coverageiPercentage of Adobe RGB covered. Do not substitute gamut volume.

Not available

Not available

Rec. 2020 coverageiPercentage of Rec. 2020 covered. Do not substitute gamut volume.

Not available

Not available

NTSC coverageiPercentage of the NTSC reference gamut covered. Source notes identify the reference. Do not substitute gamut volume.

Not available

Not available

Factory calibrated

Yes2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026OSD Picture menu: the Standard and Creative presets are described as factory calibrated. Tom's Hardware says the sample needed no calibration.

Yes1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Color Calibrated in Factory: YES.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Special features: Factory Calibrated Yes.

Claimed Delta EiMaker claim for colour error. Source notes retain a less-than qualifier, the colour space and whether the figure is an average or maximum.

Not available

Not available

Paper calibration report in boxiA physical calibration report included in the package. An electronic report in the menu or software does not count as a paper report.

Not available

Not available

Hardware calibration supportiCalibration writes to the monitor internal hardware LUT. Ordinary colour controls or a computer ICC profile do not establish this feature.

Not available

Yes1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: hardware calibration through the LG Calibration Studio. Spec table HW Calibration: Ready. The software and a calibration sensor are not in the box.

Static contrast ratioiPanel native static contrast, without dynamic contrast processing or local dimming. 1000 means 1000:1. Do not store a dynamic contrast claim here.

1,500,000:12Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Static Contrast Ratio 1,500,000:1.

1,500,000:11Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Contrast Ratio (Typ.) 1500000:1, the minimum is 1200000:1. Footnote: 1.5m:1 is the contrast ratio at 25% average picture level.

Brightness (typical, SDR)iMaker typical SDR white luminance. Source notes state any window size, average picture level and operating mode.

Not available

275nits1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Brightness (Typ.) 275 cd/m2. Feature text: standard luminosity of 275 nits.

Brightness (maker minimum)iMaker minimum guaranteed brightness specification under its stated conditions. This is not the lowest user-selectable brightness unless the source explicitly says so.

Not available

250nits1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Brightness (Min.) 250 cd/m2.

Peak brightness (HDR)iMaker peak HDR white luminance. The source notes state window size or average picture level, mode and time limit where published.

1,000nits2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: 1000 nit (HDR 3%). The page says 1,000 nit at 3% APL and 800 nit at 10% APL.

1,300nits1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: peak brightness of 1300 nits. No window size or mode is stated on the page.

HDR peak test windowiPercentage of screen area used for the peak HDR claim. If the maker publishes average picture level instead, source notes identify that distinction.

3%1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Tech Specs: 1,000 nit @ 3% APL. Published as average picture level, not as a window size.

Not available

Full-screen brightnessiMaker white luminance at 100% screen area or 100% average picture level. Source notes state SDR or HDR and mode.

Not available

Not available

HDR formats

HDR105Reviewtomshardware.com/reviews/corsair-xeneon-27qhd240Read 10 October 2026Spec table: HDR10.

HDR101Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table HDR 10: YES.

HDR certificationiVESA DisplayHDR certification. None needs a source, such as the maker saying the monitor has no DisplayHDR certification or the model being absent from the VESA list. When no source was checked, it is left out.

None1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Tech Specs: HDR Certification None.

DisplayHDR True Black 4001Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table VESA DisplayHDR: DisplayHDR 400 TRUE BLACK. Footnote: True Black 400 is at 10% average picture level.

Viewing angle (horizontal)

178°2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Viewing Angles 178 (H).

178°1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Viewing Angle (CR 10 or more) 178 degrees right and left.

Viewing angle (vertical)

178°2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Viewing Angles 178 (V).

178°1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Viewing Angle (CR 10 or more) 178 degrees up and down.

Refresh rate and motion

3 of 22 differ

Refresh rate per resolution and portiHighest accepted rate for each proven resolution, input and operating condition. Preset or supported timing lists alone do not prove a maximum. Keep separate bit-depth, chroma and DSC conditions. Dual-mode or crop-mode requirements belong in source notes. Unknown input stays unknown.

ACORSAIR Xeneon 27QHD240 OLED

Refresh rate per resolution and port. The top rate is in bold.

Resolution	HDMI 2.1	DisplayPort 1.4	USB-C
2560 × 1440Native	240Hz	240Hz	240Hz

Source2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1 states native 2560 x 1440 at 240 Hz and Table 2 marks 240 Hz on HDMI and on DP/Type-C. The USB-C Alt Mode setting must be 4-lane for 2560 x 1440 at 240 Hz. 2-lane mode allows up to 2560 x 1440 at 60 Hz and USB-A at USB 3.0 speed. Tom's Hardware says the DisplayPort 1.4 input uses DSC. Bit depth and chroma are not stated.

BLG UltraGear 27GX704A

Refresh rate per resolution and port. The top rate is in bold.

Resolution	HDMI 2.1	DisplayPort 1.4
2560 × 1440Native	240Hz	240Hz

Source1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: 27GX704A is capable of up to 240 Hz from HDMI 2.1, so QHD and 240 Hz works over DisplayPort or HDMI. A graphics card with HDMI 2.1 and the included HDMI 2.1 cable are required. Bit depth and DSC use are not stated.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Product Specification: Max Resolution and Recommended Resolution 2560 x 1440 @ 240 Hz. The preset tables list 240.083 Hz for HDMI (Input Compatibility Version 2.1 PC) and for DisplayPort (1.4 and 1.4 with DSC).3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Key features: HDMI x 2, DisplayPort x 1, 240 Hz refresh rate, HDMI FRL as compliant with HDMI 2.1.

Max refresh rateiHighest proven accepted rate across the stored modes, including lower-resolution dual modes.

240Hz=CalculatedFrom Refresh rate per resolution and port

240Hz=CalculatedFrom Refresh rate per resolution and port

Max refresh rate at native resolutioniHighest proven accepted rate at the native pixel resolution, across all inputs and stored operating conditions.

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Max refresh rate over DisplayPortiHighest proven accepted rate over DisplayPort at native resolution. A higher lower-resolution dual mode is separate.

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Max refresh rate over HDMIiHighest proven accepted rate over HDMI at native resolution. Console refresh limits can be lower than PC limits.

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Max refresh rate over USB-CiHighest proven accepted rate over USB-C or Thunderbolt at native resolution. USB data bandwidth settings can lower the video maximum.

240Hz=CalculatedFrom Refresh rate per resolution and port and Native resolution

Not available

Max refresh rate at 10-bitiHighest stored native-resolution mode explicitly proven at 10-bit colour. Rows without bit-depth evidence do not count.

Not available

Not available

Native refresh rateiHighest refresh rate the maker rates without overclock. A lower optimum or recommended mode in a manual is not this value.

240Hz2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Native Resolution 2560 x 1440 at 240Hz.

240Hz1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Refresh Rate (Max.) 240 Hz. No overclock mode is described.

Overclocked refresh rate

Not available

Not available

Dual modeiA dedicated display mode that changes resolution to raise the maximum refresh rate. Ordinary image scaling or a preset timing does not count.

Not available

Not available

Minimum fixed refresh rateiLowest fixed input rate accepted by the monitor. A VRR lower limit or general vertical scan range is not this value.

Not available

Not available

Adaptive sync technologiesiExact published adaptive-sync protocol or named certification. Generic Adaptive-Sync support does not prove VESA AdaptiveSync Display certification. Source notes distinguish protocols from certifications.

FreeSync, G-SYNC Compatible2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: NVIDIA G-Sync Compatible Certified and AMD FreeSync Certified. G-Sync is available over DisplayPort or USB-C Alt Mode.

FreeSync Premium Pro, G-SYNC Compatible, VESA AdaptiveSync Display, Adaptive-Sync, HDMI VRR1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: NVIDIA G-SYNC Compatible, AMD FreeSync Premium Pro and VESA certified AdaptiveSync. The manual names Adaptive-Sync over DisplayPort and VRR over HDMI.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Game Adjust, Adaptive-Sync/VRR: Supported Interface DisplayPort (Adaptive-Sync), HDMI (VRR). A graphics card that supports G-SYNC or FreeSync is needed.

VRR range per portiVariable-refresh-rate operating range for each input and the operating mode named in source notes. A fixed timing or general vertical scan range alone is not a VRR range.

Not available

Not available

Low framerate compensation

Not available

Not available

Response time (maker GtG claim)iMaker grey-to-grey pixel transition claim. Source notes state fastest overdrive or other conditions where published.

0.03ms2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Response Time (GtG) 0.03ms.

0.03ms1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Spec table Response Time 0.03 ms (GTG).

Response time (maker MPRT claim)iMaker moving-picture response-time claim, often with strobing enabled. This is not a grey-to-grey transition time.

Not available

Not available

Overdrive settings

Not available

Not available

Motion blur reductioniA dedicated blur-reduction feature using backlight strobing or black frame insertion. OLED monitors have no backlight.

Not available

Not available

Blur-reduction technologyiPublished name of the backlight strobing or black frame insertion feature.

Not available

Not available

Blur reduction works with VRRiWhether the dedicated strobing or black frame insertion mode can operate at the same time as variable refresh rate.

Not available

Not available

Flicker-free (claimed)

Yes2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Flicker-Free Yes.

Yes1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Footnote: LG OLED panels are certified Flicker-Free by UL, certificate A196009.

Black frame insertion

Not available

Not available

Measured

1 of 12 differ

Input lag at maximum refresh rateiReviewer total display lag at the monitor highest accepted refresh rate, including a faster dual mode. Native-rate measurements below that maximum and processing-only delay are excluded. Source notes name the rate, resolution and test method.

Not available

Not available

Input lag at 60 HziReviewer total display lag with a fixed 60 Hz input. Processing-only delay is excluded. Source notes name the resolution, mode and test method.

Not available

Not available

Average response time (measured)iReviewer mean grey-to-grey transition time across tested transitions. Source notes state the measurement endpoint, method, refresh rate and overdrive. A single worst transition or an unaveraged settling time does not count.

Not available

Not available

Overshoot (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Contrast ratio (measured)i1000 means 1000:1. Measured by a reviewer

Not available

Not available

SDR brightness (measured)iReviewer measured SDR white luminance. Source notes state picture mode, window size and brightness setting where available.

412nits5Reviewtomshardware.com/reviews/corsair-xeneon-27qhd240Read 10 October 2026Brightness and Contrast page: uncalibrated, maximum backlight, a 25 percent window reads over 412 nits. A full field measured 192.5 nits. The maker publishes 450 nit as SDR peak brightness with no window size, which is not stored as a typical value. Firmware is not stated and the review predates firmware V104.

Not available

HDR brightness in a real scene (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

PWM flicker frequency (measured)iOnly when the reviewer found PWM flicker

Not available

Not available

VRR range (measured)iMeasured by a reviewer, not claimed by the maker

Not available

Not available

Colour accuracy (measured Delta E)iReviewer average colour error before calibration. Source notes name picture mode, reference colour space and Delta E method. Post-calibration results are excluded.

Not available

Not available

Gray uniformity (measured)iDeviation on a 50 % gray screen. Measured by a reviewer

Not available

Not available

Reflections (measured)iTotal reflections. Measured by a reviewer

Not available

Not available

Connectivity

9 of 19 differ

Video inputsiPhysical connectors that accept a display signal. A USB-C data-only charging port is not a video input. Counts exclude USB hubs and audio jacks.

ACORSAIR Xeneon 27QHD240 OLED

Type	Version	Count	DSC
HDMI	2.1	2	Not available
DisplayPort	1.4	1	Yes
USB-C	DP Alt Mode 1.4	1	Not available

Source2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: 2x HDMI 2.1, 1x DisplayPort 1.4, 1x USB-C DisplayPort 1.4 (USB-C Alt Mode). Tom's Hardware and PC Monitors both say the DisplayPort input uses DSC. HDMI 2.1 features and bandwidth are not published.

BLG UltraGear 27GX704A

Type	Version	Count
HDMI	2.1	2
DisplayPort	1.4	1

Source1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Connectivity: HDMI YES (2ea), DisplayPort YES (1ea), DP version 1.4. The HDMI 2.1 version comes from the accessory row (HDMI cable ver 2.1) and the US spec sheet.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Connection sections cover HDMI and DisplayPort. The Input Compatibility Version setting for HDMI offers 1.4 and 2.1.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026HDMI Yes x 2, HDMI Version: supports FRL as compliant with HDMI 2.1. DisplayPort Yes x 1, DP Version 1.4. Bandwidth in Gbps and HDCP are not stated.

HDMI ports

2=CalculatedFrom Video inputs

2=CalculatedFrom Video inputs

DisplayPort ports

1=CalculatedFrom Video inputs

1=CalculatedFrom Video inputs

Highest HDMI version

2.1=CalculatedFrom Video inputs

2.1=CalculatedFrom Video inputs

Highest DisplayPort version

1.4=CalculatedFrom Video inputs

1.4=CalculatedFrom Video inputs

HDMI features

Not available

VRR2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Adaptive-Sync/VRR: HDMI (VRR).

USB-C video (DP Alt Mode)

Yes2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: USB-C input is DisplayPort 1.4 (USB-C Alt Mode).

No1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The connectivity list has HDMI, DisplayPort, a USB upstream port and USB downstream ports, and no USB-C port. PCGH also states there is no USB-C with DisplayPort Alt Mode.12Press articlepcgameshardware.de/Monitor-Display-Hardware-154105/News/Gaming-Monitor-LG-Ultragear-OLED-GX7-27GX704A-B-27-Zoll-WQHD-OLED-MLA-240-Hz-guenstig-kaufen-Amazon-Angebot-1536075Read 23 October 2026PCGH article of 2026-05-21 lists 1 DisplayPort 1.4 and 2 HDMI 2.1 and states there is no USB-C with DisplayPort Alt Mode.

USB-C power deliverediPower the monitor supplies to a connected device. Source notes distinguish guaranteed, maximum and shared dynamic limits. Power consumed by the monitor is separate.

65W2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: USB-C Input with 65W Power Delivery.

Not available

Thunderbolt

Not available

Not available

USB upstream portsiUSB connections from the monitor hub to host computers. Video input and downstream charging ports are separate.

ACORSAIR Xeneon 27QHD240 OLED

Connector	USB version	Count
USB-C	3.1 Gen 1	2

Source2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Connectivity: the Type-C Alt DP port and the Type-C IN port both carry upstream USB, one at a time. Table 1 gives 5Gbps upstream data.

BLG UltraGear 27GX704A

Connector	USB version	Count
USB-B	3.2 Gen 1	1

Source1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Connectivity: USB Upstream Port YES (1ea, ver 3.2 Gen1). The connector is type B, since the box has a USB A to B cable.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026USB Device connection: connect the A-B type USB 3.0 cable of the product to the PC.

USB downstream hub portsiUSB hub connections for peripherals. These exclude host-facing upstream ports. A port the maker names for service or firmware updates only is not counted.

ACORSAIR Xeneon 27QHD240 OLED

Connector	USB version	Count
USB-A	3.1 Gen 1	4

Source2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: 4x 5Gbps Type-A USB 3.1 Gen1. In 4-lane USB-C Alt Mode the Type-A ports run at USB 2.0 speed.

BLG UltraGear 27GX704A

Connector	USB version	Count
USB-A	3.2 Gen 1	2

Source1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Connectivity: USB Downstream Port YES (2ea, ver 3.2 Gen1). RTINGS describes two USB-A ports.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026USB Device connection: the USB port on the product functions as a hub.8Reviewrtings.com/monitor/reviews/lg/27gx704a-bRead 23 October 2026RTINGS text: small USB hub with two USB-A ports.

KVM switch

Yes1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Connections section: 4x USB Type-A hub with KVM.

No8Reviewrtings.com/monitor/reviews/lg/27gx704a-bRead 23 October 2026RTINGS text says the monitor lacks a KVM switch, apart from a small USB hub with two USB-A ports. Read in Chrome. The measured result cells are for members only and are not used.

Daisy chain (MST)

Not available

Not available

Ethernet

Not available

Not available

3.5 mm headphone outputiAnalogue headphone or audio output. A shared four-pole headset jack counts.

Yes2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Connectivity: 3.5mm audio jack, headset connector for audio output.

Yes1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Connectivity: Headphone output 3-pole (Sound Only). The feature text calls it a 4-pole headphone out, so the pole count conflicts.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Headset Connection section.

3.5 mm microphone inputiAnalogue microphone input, including the microphone contacts of a shared four-pole headset jack. This does not imply a separate microphone socket.

Not available

Not available

Optical out

Not available

Not available

Picture in picture

Yes2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026OSD PIP/PBP menu: Function Mode PIP.6Reviewpcmonitors.info/corsair/corsair-xeneon-27qhd240-240hz-qhd-oled-with-hdmi-2-1Read 10 October 2026PC Monitors listing: 2-system PiP and PbP is supported.

Not available

Picture by picture

Yes2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026OSD PIP/PBP menu: Function Mode PBP.

Not available

Smart features

None of 4 known

Smart platform

Not available

Not available

Wi-Fi

Not available

Not available

Bluetooth

Not available

Not available

Remote control

Not available

Not available

Audio and camera

1 of 5 differ

Speakers

No5Reviewtomshardware.com/reviews/corsair-xeneon-27qhd240Read 10 October 2026Assembly section: there is no internal audio.

Not available

Number of speakers

Not available

Not available

Speaker power per channeliRated power per speaker or output channel. Do not store the total of all speakers here.

Not available

Not available

Webcam

Not available

Not available

Microphone

Not available

Not available

Ergonomics and controls

7 of 15 differ

Stand height adjustmentiVertical travel of the supplied stand. This is not the total height of the monitor.

100mm2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Stand adjustment: height +/- 100mm. The Tech Specs list a 100mm adjustable height.

130mm1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The UK dimensions with stand are 532.6 mm up and 402.6 mm down, a difference of 130 mm. The manual states 130 mm.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Adjusting the Stand Height: Max. 130.0 mm.

TiltiMaximum movement from the neutral position with the supplied stand. Each direction is stored as a positive magnitude.

Forward7°Backward15°2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Stand adjustment: tilt -7/+15 degrees.

Forward5°Backward21°1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Display Position Adjustments: Tilt, Height, Swivel and Pivot. The ranges are in the manual.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Adjusting the Angle: forward or backward from -5 to 21 degrees. Stored as 5 forward and 21 backward.

SwiveliMaximum movement from the neutral position with the supplied stand. Each direction is stored as a positive magnitude.

Left30°Right30°2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Stand adjustment: swivel +/- 30 degrees.

Left30°Right30°1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Display Position Adjustments lists Swivel. The range is in the manual.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Adjusting the Angle: 30 degrees to the left or to the right.

PivotiMaximum movement from the neutral position with the supplied stand. Each direction is stored as a positive magnitude. Pivot is rotation in the screen plane. A small slant adjustment for levelling, as Dell calls it, counts.

Counterclockwise90°Clockwise90°2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Stand adjustment: pivot +/- 90 degrees.

Counterclockwise90°Clockwise0°1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Display Position Adjustments lists Pivot. The range is in the manual.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Pivot Feature: the monitor rotates 90 degrees counter-clockwise only.

Removable stand

Yes2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026VESA Mount Compatibility: remove the stand neck with the lock button.

Yes2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Wall mount instructions: remove the stand by performing the stand attachment in reverse.

VESA mount

100 x 1002Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026VESA Compatibility 100mm x 100mm.

100 x 1001Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Wall Mountable 100 x 100 mm.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Wall Mount 100 x 100 mm, M4 x L10 screws, 4 screws.

VESA adapter needed

No5Reviewtomshardware.com/reviews/corsair-xeneon-27qhd240Read 10 October 2026Review: a 100mm VESA mount sits under the stand attachment point with fasteners included for aftermarket arms. The manual attaches a compatible mount directly.

No2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026The wall mount plate is attached directly after the stand is removed. No VESA adapter is mentioned.

Security lock slot

Yes2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Connectivity: Kensington lock, one security device.

Yes2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Using the Kensington Lock section. The lock itself is optional and sold separately.

On-screen menu controlsiControls that operate the monitor menu or display settings. Desktop window-layout software alone does not count as menu control.

Joystick2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Controls: a joystick on the front-bottom side opens shortcuts and navigates the settings.

Joystick, Software1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: On-Screen Display and OnScreen Control for settings and the User Defined Key. The manual describes the joystick button.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026The joystick button at the bottom of the monitor opens and controls the OSD menu. Supported software includes LG Switch and Dual Controller.

Desktop software

Not available

LG Switch, LG Calibration Studio, Dual Controller2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Supported Software: Monitor Driver, LG Switch, LG Calibration Studio and Dual Controller.

User firmware updates

Yes1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Downloads: XENEON 27QHD240 OLED Firmware V106, with a firmware update guide.

Not available

Ambient light sensoriPresence of a physical ambient-light sensor. A regulatory statement that Automatic Brightness Control is unavailable does not prove the sensor is absent. Human presence or proximity sensing is separate.

Not available

Not available

Presence sensoriPresence of a person-detection or proximity sensor. Source notes distinguish room presence from near-screen detection. Absence of one kind does not prove absence of every presence sensor.

Not available

Not available

RGB lightingiDecorative illumination explicitly described as RGB or documented with selectable red, green and blue colours. A power LED or only one or two fixed colours is insufficient.

Not available

Not available

Gaming menu features

Crosshair, Refresh Overlay2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026OSD Picture menu: Refresh Overlay and Crosshair.

Black Stabilizer, Dynamic Action Sync, Crosshair, FPS Counter1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Features list Black Stabiliser, Dynamic Action Sync, Crosshair and FPS Counter.

OLED care

3 of 3 differ

OLED care

Image Retention Refresh, Orbit, Brightness Stabilizer2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026OSD System Setting: Image Retention Refresh, Orbit pixel shift of 1 pixel per minute, and Brightness Stabilizer that limits peak brightness to 200 nits.

OLED Screen Move, OLED Screen Saver, OLED Image Cleaning1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The feature text names OLED Care. The manual lists the three functions.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Settings, General: OLED Screen Move, OLED Screen Saver and OLED Image Cleaning.

Burn-in covered by warrantyiWarranty explicitly covers permanent OLED image burn-in. A general panel warranty alone does not prove burn-in coverage.

Yes7Press articletftcentral.co.uk/news/corsair-xeneon-27qhd240-oled-27-monitor-with-240hz-announcedRead 10 October 2026Announcement text: the screen is backed by a three-year Zero Dead Pixel and Zero Burn In warranty. The product page lists a burn-in protection guarantee.

Not available

Burn-in warranty length

3years7Press articletftcentral.co.uk/news/corsair-xeneon-27qhd240-oled-27-monitor-with-240hz-announcedRead 10 October 2026Announcement text: three-year Zero Burn In warranty.

Not available

Dimensions and weight

6 of 7 differ

Dimensions with standiOverall monitor dimensions with the supplied stand. Minimum and maximum heights require the stand position to be identified by the source.

Width604.4Height (lowest)439Height (highest)539Depth224.3mm(23.8 × 17.3 to 21.2 × 8.8 in)2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1 gives 604.4 x 530.8 x 224.3 mm for width, height and depth. Width and depth are taken from it. Minimum and maximum height come from Tom's Hardware, 439 to 539 mm, which agrees with the 100 mm height adjustment and contains the 530.8 mm figure.5Reviewtomshardware.com/reviews/corsair-xeneon-27qhd240Read 10 October 2026Spec table: 23.8 x 17.3-21.2 x 8.8 inches (605 x 439-539 x 224mm) with base. Heights are taken from here.

Width605.2Height (lowest)402.6Height (highest)532.6Depth220mm(23.8 × 15.9 to 21 × 8.7 in)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Dimension with Stand (W x H x D) 605.2 x 532.6 x 220 mm (up) and 605.2 x 402.6 x 220 mm (down).2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026With stand 605.2 x 532.6 x 220.0 mm (W x H x D), the highest position.

Dimensions without standiOverall monitor body dimensions after the stand is removed, including the frame and rear housing.

Not available

Width605.2Height351Depth45.3mm(23.8 × 13.8 × 1.8 in)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Dimension without Stand (W x H x D) 605.2 x 351.0 x 45.3 mm.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Without stand 605.2 x 351.0 x 45.3 mm.

Stand footprintiWidth and depth of the stand base on the desk. A maker's stand width and depth count.

Not available

Not available

Weight with standiWeight with the supplied stand. Source notes state if cables are included. Packaging weight is separate.

9.9kg(21.8 lb)2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Weight 9.9kg, listed after the dimensions with stand. Tom's Hardware also gives 9.9 kg. The product page rounds it to 9kg.

7.2kg(15.9 lb)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Weight with Stand 7.2 kg.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026With stand 7.2 kg without packaging.

Weight without standiMonitor body weight without stand. Source notes state whether cables are included.

Not available

4.8kg(10.6 lb)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Weight without Stand 4.8 kg.2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026Without stand 4.8 kg without packaging.

Box dimensionsiShipping box width, height and depth in the maker published orientation. A flat-packed box can have a smaller height than the upright display.

Not available

Width673Height168Depth529mm(26.5 × 6.6 × 20.8 in)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Dimension in Shipping (W x H x D) 673 x 168 x 529 mm.

Box weight

Not available

9.9kg(21.8 lb)1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Weight in Shipping 9.9 kg.

Power

9 of 13 differ

Power supplyiUSB-C powered monitors can draw power from a compatible host or an optional USB-C power source. This does not establish a bundled adapter. Record a supplied adapter and its rating separately.

External adapter2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Package contents list an AC adaptor. The guide names the Delta ADP-180TB HU supply.

External adapter1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Power Type External Power (Adapter).4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Power supply type external.6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026Power supply type external.

Adapter ratingiRated output power of the external power adapter. Do not substitute the monitor maximum consumption.

180W1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Tech Specs: AC Adapter 180W.

Not available

Input voltage

Not available

100-240 V AC, 50/60 Hz1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Power AC Input 100 to 240 V (50/60 Hz). This is the adapter input.

Power use (typical)iMaker typical operating power under a stated test condition. An unlabeled Power On upper bound does not establish a typical value. EU label test power has separate fields. An ENERGY STAR on-mode (Pon) figure is not a typical value.

34.81W2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Power Consumption (On) 34.81 W. Tom's Hardware measured 30 W at 200 nits.

Not available

Power use (max)iMaker maximum operating power. Source notes state whether USB charging and connected-device load are included.

Not available

Not available

Power use SDR (EU label)iSDR on-mode power demand in the EU product information sheet, in watts. It can differ from rounded energy-label kWh per 1000 hours.

Not available

23.5W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026On mode power demand in SDR 23.5 W.6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026On mode power demand SDR 23.5 W.

Power use HDR (EU label)iHDR on-mode power demand in the EU product information sheet, in watts. It can differ from rounded energy-label kWh per 1000 hours.

Not available

22.5W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026On mode power demand in HDR 22.5 W.6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026On mode power demand HDR 22.5 W.

Standby poweriPower in standby or DPMS. Source notes retain any less-than qualifier.

0.5W2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Power Consumption (Sleep) < 0.5W. Published as less than 0.5 W.

0.5W1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Power Consumption (Sleep Mode) less than 0.5 W. The EPREL sheet states 0.5 W.4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Standby mode power demand 0.5 W.

Off-mode poweriPower when switched off but still connected to mains. Source notes retain any less-than qualifier.

0.3W2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Table 1: Power Consumption (Off) < 0.3W. Published as less than 0.3 W.

0.3W1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Power Consumption (DC Off) less than 0.3 W. The EPREL sheet states 0.3 W.4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Off mode power demand 0.3 W.

EU energy class SDR

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F1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The UK page links the EU energy label and the product information sheet, class F.5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2408077.svgRead 23 October 2026EU label class F for SDR.6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026Product information sheet dated 2025-11-20: SDR class F.

EU energy class HDR

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F1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026The product information sheet shows HDR class F.5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2408077.svgRead 23 October 2026EU label class F for HDR.6Maker spec sheet (PDF)lg.com/uk/lgecs.downloadFile.ldwfRead 23 October 2026HDR class F.

Energy per 1000 h SDR

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24kWh5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2408077.svgRead 23 October 2026EU label SDR value 24 kWh per 1000 h.

Energy per 1000 h HDR

Not available

23kWh5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2408077.svgRead 23 October 2026EU label HDR value 23 kWh per 1000 h.

Certifications

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VESA ClearMR

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13,0003Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Special features: VESA ClearMR 13000.

VESA AdaptiveSync Display

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TÜV certifications

Low Blue Light Hardware Solution2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026About Low Blue Light.

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Low blue lightiHardware means a published panel-level hardware low-blue-light solution. Software means a selectable picture filter. Hardware does not require a selectable filter mode.

Hardware2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026About Low Blue Light: complies with TUV Rheinland Low Blue Light Hardware Solution at factory default settings.

Hardware1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Feature text: LG WOLED is certified by UL for low blue light, platinum. Certificate: Low Blue Light Hardware Solution Platinum V745051.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Special features: Live Color Low Blue Light Yes.

ENERGY STAR

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TCO Certified

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EPEAT

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Colour certifications

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Other certifications

CE, UKCA1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Documentation: CE and UKCA declarations of conformity.

UL Flicker-Free Display A196009, UL Discomfort Glare Free V563481, UL Low Blue Light Hardware Solution Platinum V7450511Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Footnote with certificate numbers: Flicker-Free Display (OLED) A196009, Discomfort Glare Free V563481 (UGR below 22), Low Blue Light Hardware Solution Platinum V745051.

In the box

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In the box

Monitor, Stand Base, AC Adapter & Power Cord, 1.5m DisplayPort Cable, 1.5m HDMI Cable, 1.5m USB Type-C to C Cable, 1.8M USB Type-A to C Cable1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Package Contents, verbatim. The stand neck is attached to the panel.

Monitor, Power adapter, Power cord, DisplayPort cable, HDMI cable, USB-A to USB-B cable1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Accessory rows: HDMI (ver 2.1), Display Port, USB A to B. The manual says to use the power cord in the package, and it lists two AC/DC adaptor models.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Cabinet and accessories list the three cables.

Cables includediCables supplied with the product. Count is included only when the source establishes it. Bundles can vary by market.

ACORSAIR Xeneon 27QHD240 OLED

Type	Count
AC power cable	1
DisplayPort cable (1.5 m)	1
HDMI cable (1.5 m)	1
USB Type-C to C cable (1.5 m)	1
USB Type-A to C cable (1.8 m)	1

Source2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Package contents list items D to H, one of each.

BLG UltraGear 27GX704A

Type
DisplayPort cable
HDMI cable
USB-A to USB-B cable

Source1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026Accessory rows: HDMI (ver 2.1), Display Port, USB A to B. Counts are not stated. The US spec sheet lists the same three cables.3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Cabinet and accessories: Display Port Cable Yes, HDMI Cable Yes (Ver 2.1), USB A to B Cable Yes.

Warranty

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Manufacturer warranty (source market)iThe maker's warranty period for the exact SKU or configuration and market named in the source note. It applies only to that stated market, not every regional variant. Statutory consumer rights are excluded. The base term is stored. An extension that needs registration goes in the source note.

3years1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Tech Specs: Warranty 3 Year. Tom's Hardware also lists 3 years.

2years3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026Limited Warranty 2-Year Parts and Labor, US. The EPREL sheet gives 1 year as the general guarantee in the EU.4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026Minimum duration of the general guarantee offered by the supplier is 1 year in the EU.

Dead pixel policy

Zero Dead Pixel guarantee1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Protection section heading: Zero Dead Pixel Guarantee. TFTCentral's announcement adds a three-year Zero Dead Pixel and Zero Burn In warranty. The detailed policy text was not found.

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Links

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Product page

www.corsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-na1Maker product pagecorsair.com/us/en/p/monitors/cm-9030002-na/xeneon-27qhd240-27-inch-oled-2560x14400-240hz-gaming-display-cm-9030002-naRead 10 October 2026Exact model US product page.

www.lg.com/uk/monitors/gaming/27gx704a-b1Maker product pagelg.com/uk/monitors/gaming/27gx704a-bRead 23 October 2026LG UK product page, SKU 27GX704A-B.AEK, model year 2025.

Spec sheet

www.corsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oled2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Web version of the manual with Table 1, the full technical specifications. No separate spec sheet PDF was found.

static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdf3Maker spec sheet (PDF)static.pcrichard.com/docs/27GX704A-B_Specifications-Sheet_01.pdfRead 23 October 2026LG USA spec sheet for 27GX704A-B.AUS dated 9/29/2025. Hosted by the retailer pcrichard.com.

Manual

www.corsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oled2Owner's manualcorsair.com/us/en/explorer/gamer/monitors/corsair-xeneon-27qhd240-oledRead 10 October 2026Maker manual and quick start guide as a web page.

gscs-b2c.lge.com/open/downloadFile2Owner's manualgscs-b2c.lge.com/open/downloadFileRead 23 October 2026LG Owner's Manual in English from the LG UK support page, PDF created 2025-06-26. It covers 27GX704A only.

EPREL registration numberiId in the EU energy label database. Each size or model of a series has its own id, so it is per variant.

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24080774EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2408077_EN.pdfRead 23 October 2026EPREL registration number 2408077, model identifier 27GX704A. The sheet says the model was placed on the Union market from 2025-07-07.

Both are also in the API. Back to all monitors.