ROG Swift OLED PG27UCWM

General

Series

ROG Swift OLED1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Exact model header on the maker's global spec page.

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

PG27UCWM, 90LM0CY1-B019711Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Header names PG27UCWM. The ordering code 90LM0CY1-B01971 is in the page data of the same product. The ASUS US store sells ordering code 90LM0CY0-B019B1, which is not stored because the maker pages do not show it as a different configuration.

GTIN / EAN

47116365058579Retailer pagegrosbill.com/asus-rog-swift-pg27ucwm-169893Read 14 October 2026EAN 4711636505857 for manufacturer reference 90LM0CY1-B01971. hinta.fi lists the same EAN and code. No UPC found for the US ordering code.

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

4 January 20267Press releaserog.asus.com/ca-en/articles/gaming-monitors/rgb-stripe-pixel-oled-tech-debuts-in-the-rog-swift-pg34wcdn-xg34wcdms-pg27ucwmRead 14 October 2026Maker CES article dated 4 January 2026 introduces the PG27UCWM. It gives no price or date and says the monitors are on their way.

Status

Available8Maker product pageeshop.asus.com/us/90lm0cy0-b019b1-rog-swift-oled-pg27ucwm.htmlRead 14 October 2026ASUS US store lists the exact model as in stock and for sale at 1,199 USD (current store price, not a launch MSRP).

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

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

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

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.

€1,249.911Reviewguru3d.com/review/asus-rog-swift-oled-pg27ucwm-240-480-hz-gaming-monitor-reviewRead 14 October 2026Page 1: recommended price 1,249.90 EUR including VAT, written as an approximate European recommended price. Tom's Hardware gives 1,099 USD as a starting price while the ASUS US store sells at 1,199 USD, so no USD price is stored.

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

US, EU8Maker product pageeshop.asus.com/us/90lm0cy0-b019b1-rog-swift-oled-pg27ucwm.htmlRead 14 October 2026US from the ASUS US store, EU from the EPREL registration and European retailers.

ColoursiThe maker's own colour names

Black3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Specifications table Chassis Colors Black.

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

Gaming1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Maker Gaming Monitors category.

Display

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

26.5in(67.3 cm)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Panel Size (inch) 26.5. EPREL gives 67.3 cm, which is the same diagonal.

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

Not available

Native resolution

3840 × 2160px1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026

Aspect ratio

16:91Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026

Pixel density

166.3ppi=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.

0.153mm1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Pixel Pitch 0.153 mm as published. The published active area divided by 3840 x 2160 gives about 0.1536 mm, so the maker's figure looks truncated. Stored as published.

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.

Width589.97Height331.7mm(23.2 × 13.1 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Display Viewing Area (HxV) 589.97 x 331.70 mm, listed here as width x height. The manual's pixel format line says 26.5 inch (674.0 mm), which is a smaller diagonal than this area implies, so the area is stored as the maker page states it.

Curved

No11Reviewguru3d.com/review/asus-rog-swift-oled-pg27ucwm-240-480-hz-gaming-monitor-reviewRead 14 October 2026Page 3: the display is completely flat. No curvature radius is published.

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

Not available

Screen surface

Glossy1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Display Surface Glossy (TrueBlack Glossy).

Anti-reflection coating

TrueBlack Glossy2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026TrueBlack Glossy zero-haze optical layer with an anti-reflective stack. Exact maker name stored.

Touchscreen

Not available

Panel

Panel type

WOLED1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Panel Type WOLED.

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

Tandem RGB OLED1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Panel Technology Tandem RGB OLED.

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)3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Product is OLED, which is self-emissive. The manual spec table labels the Backlight Type row as RGB stripe, which is a pixel layout and is not stored as a backlight.

Local dimming

Not available

Dimming zones

Not available

Panel maker

LG Display10Press articletftcentral.co.uk/news/asus-unveil-the-rog-swift-pg27ucwm-with-a-27-4k-tandem-woled-panel-and-rgb-stripe-pixel-layoutRead 14 October 2026Names LG Display as the panel maker. The panel model number is not given.

Panel part number

Not available

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

4th Gen Primary RGB Tandem WOLED10Press articletftcentral.co.uk/news/asus-unveil-the-rog-swift-pg27ucwm-with-a-27-4k-tandem-woled-panel-and-rgb-stripe-pixel-layoutRead 14 October 2026Names a 4th Gen Primary RGB Tandem WOLED panel, which LG Display now calls Tandem WOLED.

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.

RGB stripe2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026States true RGB Stripe sub-pixel arrangement and removal of the white subpixel of standard WOLED.

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.

10bits1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Display Colors 1073.7M (10 bit).

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

Native12Reviewtomshardware.com/monitors/gaming-monitors/asus-rog-swift-pg27ucwm-27-inch-4k-oled-gaming-monitor-reviewRead 14 October 2026Spec table row Native Color Depth and Gamut: 10-bit / DCI-P3. The maker page says 10 bit without the word native.

Displayable colours

1.07 billion1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Published as 1073.7M. Normalized to 1.07 billion.

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.

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.

99%1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Color Space (DCI-P3) 99%. The manual says 99% (Typ.). The reference chromaticity is not stated. The 130% sRGB figure is gamut volume and is not stored as coverage.

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

Not available

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

Not available

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

Not available

Factory calibrated

Yes2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026FAQ says ROG OLED monitors are factory calibrated. Spec page lists a Color Calibration E-report through DisplayWidget Center. Tom's Hardware confirms factory calibration data stored in firmware. No paper report is stated.

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.

22Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026Feature banner reads 99% DCI-P3 and Delta E under 2. Stored as 2 with the less-than qualifier. Average or maximum is not stated.

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

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

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.

1,500,000:11Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Contrast Ratio (Typ.) 1,500,000:1.

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

250nits1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Brightness (Typ.) 250 cd/m2. The manual spec table adds 450 nits (peak) without a condition, which is not stored.

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

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

1,000nits1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Brightness (HDR, Peak) 1,000 cd/m2. The page note says peak brightness may vary due to color pre-calibration. The test window is not stated on the maker page and is left out.

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.

Not available

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

250nits12Reviewtomshardware.com/monitors/gaming-monitors/asus-rog-swift-pg27ucwm-27-inch-4k-oled-gaming-monitor-reviewRead 14 October 2026Spec table Brightness (mfr) 250 nits full screen and 1,000 nits at a 3% window. The panel maker figures quoted by TFTCentral are 1,000 nits at 1.5% APL for HDR peak and 250 nits at 100% APL, so the peak window is stated two ways and is not stored.

HDR formats

HDR10, Dolby Vision1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026HDR Support lists HDR10 and Dolby Vision as two rows. HDR10+ is not listed by the maker.

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.

DisplayHDR True Black 4001Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Certificate list VESA DisplayHDR 400 True Black.

Viewing angle (horizontal)

178°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Viewing Angle (CR 10 or more) 178 / 178.

Viewing angle (vertical)

178°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Viewing Angle (CR 10 or more) 178 / 178.

Refresh rate and motion

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.

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

Resolution	HDMI 2.1	DisplayPort 2.1a UHBR20	USB-C
3840 × 2160Native	240Hz	240Hz	240Hz
1920 × 1080	480Hz	480Hz	480Hz

Source2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026Feature page: DisplayPort 2.1a UHBR20 with full 80 Gbps supports 4K at 240 Hz without compression. Dual Mode switches between 4K at 240 Hz and FHD at 480 Hz. Maker spec page Signal Frequency gives 48 to 240 Hz vertical for HDMI, USB-C and DisplayPort at native resolution. The manual says Frame Rate Boost enables up to 1920 x 1080 at 480 Hz, and its timing table lists 3840 x 2160 at 240 Hz and 1920 x 1080 at 480 Hz as accepted on HDMI and on DP and USB-C. Bit depth, chroma and DSC for HDMI and USB-C are not stated. The manual's Type-C Bandwidth setting limits USB 3.2 mode to 3840 x 2160 at 120 Hz, so the USB-C maxima need the other bandwidth setting. HDMI 4K at 240 Hz needs a signal beyond uncompressed 48 Gbps, so no DSC value is stored for it.

Show as source table

Width (px)	Height (px)	Input	Input version	Maximum accepted rate (Hz)	DSC
3840	2160	DisplayPort	2.1a UHBR20	240	No
3840	2160	HDMI	2.1	240	Not available
3840	2160	USB-C	Not available	240	Not available
1920	1080	DisplayPort	2.1a UHBR20	480	Not available
1920	1080	HDMI	2.1	480	Not available
1920	1080	USB-C	Not available	480	Not available

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

480Hz=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

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

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

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

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

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

240Hz1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Refresh Rate (max) 240 Hz at the native 3840 x 2160. The 480 Hz mode is the Full HD dual mode.

Overclocked refresh rate

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.

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Dual Mode Yes, 4K at 240 Hz or FHD at 480 Hz.

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

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.

Adaptive-Sync, VESA AdaptiveSync Display, FreeSync Premium Pro, G-SYNC Compatible1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026VRR Technology Yes (Adaptive-Sync). Certificate list names AMD FreeSync Premium Pro, G-SYNC Compatible and VESA AdaptiveSync Display. The ASUS US store page lists G-SYNC Compatible and VESA AdaptiveSync Display 480Hz but not FreeSync Premium Pro.

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.

Min (Hz)	Max (Hz)
48	240
48	480

Source3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Gaming menu, Variable Refresh Rate: can only be activated within 48 to 240 Hz when Frame Rate Boost is off and 48 to 480 Hz when Frame Rate Boost is on. The manual does not split the range by port, so no input is stored. First row is Frame Rate Boost off, second row is on.

Low framerate compensation

Yes15Maker product pageamd.com/en/resources/support-articles/faqs/DH3-013.htmlRead 14 October 2026AMD defines FreeSync Premium Pro as supporting low framerate compensation. The maker lists AMD FreeSync Premium Pro for this model. A compatible GPU and enabled mode are required.

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

0.03ms1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Response Time 0.03 ms (GTG). The announcement calls it a minimum GTG response time.

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

Overdrive settings

Not available

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

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Extreme Low Motion Blur Yes.

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

Extreme Low Motion Blur (ELMB)3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Gaming menu ELMB Setup. The spec page names it Extreme Low Motion Blur.

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

No3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026ELMB can only be activated when Variable Refresh Rate is off, and enabling ELMB turns VRR off. ELMB is available at 120 Hz, or at 120 and 240 Hz in Frame Rate Boost mode.

Flicker-free (claimed)

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Flicker free Yes. TUV Flicker-free is on the certificate list.

Black frame insertion

Not available

Measured

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

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

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

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

Not available

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

Not available

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

278nits13Measurementtomshardware.com/monitors/gaming-monitors/asus-rog-swift-pg27ucwm-27-inch-4k-oled-gaming-monitor-review/3Read 14 October 2026Page 3: Racing mode, Power Setting on Performance, brightness slider at maximum, Uniform Brightness on. Full field 278 nits, and the 25% window also read 278 nits. With Uniform Brightness off a 25% window reached just under 500 nits. Guru3D measured lower SDR maxima (229.6 nits at 100% in sRGB Calibration mode) with default settings. The ASUS manual says the default Power Saving mode limits brightness.

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

Not available

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

Not available

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

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.

1.0514Measurementtomshardware.com/monitors/gaming-monitors/asus-rog-swift-pg27ucwm-27-inch-4k-oled-gaming-monitor-review/4Read 14 October 2026Page 4: Racing picture mode, uncalibrated, Calman gamut test, 1.05 dE average color gamut error. The Delta E formula is not stated on the page. Guru3D measured an average 2.37 in Racing mode with a DataColor Spyder, a different instrument and patch set, so the two are not the same test.

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

Not available

Reflections (measured)iTotal reflections. Measured by a reviewer

Not available

Connectivity

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.

Type	Version	Count	Max bandwidth (Gbps)
DisplayPort	2.1a UHBR20	1	80
HDMI	2.1	2	48
USB-C	Not available	1	Not available

Source2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026Rich Connectivity: DisplayPort 2.1a UHBR20 with full 80 Gbps, HDMI 2.1 FRL 48 Gbps. Counts from the manual I/O line: HDMI v2.1 x2, DisplayPort v2.1 x1, USB Type-C x1. DSC and HDCP are not stored.

HDMI ports

2=CalculatedFrom Video inputs

DisplayPort ports

1=CalculatedFrom Video inputs

Highest HDMI version

2.1=CalculatedFrom Video inputs

Highest DisplayPort version

2.1a UHBR20=CalculatedFrom Video inputs

HDMI features

Not available

USB-C video (DP Alt Mode)

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026I/O Ports USB-C x 1 (DP 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.

90W1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026USB-C Power Delivery 90 W.

Thunderbolt

Not available

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

Connector	USB version	Count
USB-B	3.2 Gen 1	1
USB-C	Not available	1

Source3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Back view and I/O line: USB Type-B x1, USB 3.2 Gen 1 upstream. The Type-C port also carries USB data to a host (Type-C Bandwidth setting offers USB 2.0 or USB 3.2, and Smart KVM selects it). No USB revision is stated for the Type-C connection.

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.

Connector	USB version	Count
USB-A	3.2 Gen 1	3

Source3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026I/O line USB Type-A (5V / 0.9A) x3. Back view lists them as USB 3.2 Gen 1 downstream ports.

KVM switch

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026KVM Switch Yes.

Daisy chain (MST)

Not available

Ethernet

No3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026The complete I/O line has no Ethernet port.

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

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Earphone jack Yes. Tom's Hardware names it as a 3.5 mm jack.

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.

No3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026The complete back view and I/O line list only an earphone jack for audio. No microphone input.

Optical out

No3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026The complete I/O line has no optical or S/PDIF output.

Picture in picture

Yes3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026OSD PIP/PBP menu has PIP Size (Small, Middle, Large). PIP/PBP turns off VRR, ELMB, Aspect Control and DSC.

Picture by picture

Yes3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026OSD PIP/PBP Mode selects the split screen type, and Smart KVM enables PBP automatically.

Audio and camera

Speakers

No1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Speaker No.

Number of speakers

Not available

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

Not available

Webcam

Not available

Microphone

Not available

Ergonomics and controls

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

110mm1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Height Adjustment 0 to 110 mm.

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

Forward5°Backward20°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Tilt +20 to -5 degrees, stored as 20 backward and 5 forward. The manual gives -5 to 20.

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

Left30°Right30°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Swivel +30 to -30 degrees.

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°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Pivot +90 to -90 degrees.

Removable stand

Yes3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Chapter 1.4 Detaching the arm/stand: push the locking clips and slide the stand out.

VESA mount

100 x 1001Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026VESA Wall Mounting 100x100 mm.

VESA adapter needed

Yes3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026The package list names a Wall Mount Kit. Tom's Hardware describes a bracket that snaps onto the panel to make the 100 mm VESA mount and Guru3D lists a 100 x 100 mm VESA adapter in the box. The manual text at 1.4 says the VESA wall mount kit is purchased separately, which conflicts with its own package list. Stored as required, since the kit is needed and listed in the box.

Security lock slot

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Kensington Lock Yes.

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

Joystick, Buttons, Software3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Front view and controls: five-way control button, close button and power button. ASUS DisplayWidget Center adjusts monitor settings from the desktop. Tom's Hardware calls the control a joystick.

Desktop software

ASUS DisplayWidget Center1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026DisplayWidget Yes, DisplayWidget Center.

User firmware updates

Yes2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026DisplayWidget Center offers firmware update notifications and a direct update option.

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

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.

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Proximity Sensor, Neo Proximity Sensor. It detects the user's distance and blanks the screen when the user leaves. It is not an ambient light sensor.

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.

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Lighting effect (Aura) Aura Sync. The manual has Aura RGB with selectable colours.

Gaming menu features

Frame Rate Boost, Variable Refresh Rate, ELMB, GamePlus, FPS Counter, Crosshair, Dynamic Crosshair, Sniper, Timer, Stopwatch, Display Alignment, GameVisual, Shadow Boost, Dynamic Shadow Boost, Aspect Control, AI Visual, Uniform Brightness, OLED Anti-Flicker2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026Names from the feature page and manual: Frame Rate Boost, GamePlus tools, GameVisual, Shadow Boost, AI Assistant (AI Visual, Dynamic Crosshair, Dynamic Shadow Boost), Aspect Control, Uniform Brightness and OLED Anti-Flicker.

OLED care

OLED care

Neo Proximity Sensor, Pixel Cleaning, Screen Move, Screen Saver, Auto Logo Brightness, Taskbar Detection, Outer Dimming Control, Global Dimming Control, Target Mode, Boundary Detection2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026OLED Care Pro section names Neo Proximity Sensor, Pixel Cleaning, Screen Move, Screen Saver, Logo brightness adjustment, Taskbar detection, Outer dimming control, Global dimming control, Target mode and Boundary Detection.

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

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Warranty explicitly includes panel burn-in.

Burn-in warranty length

3years1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Warranty 3 years including panel burn-in.

Dimensions and weight

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

Width606Height (lowest)438Height (highest)548Depth256mm(23.9 × 17.2 to 21.6 × 10.1 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Spec page gives 60.6 x 54.8 x 25.6 cm. The manual gives 606 x 548 x 256 mm (highest) and 606 x 438 x 256 mm (lowest), so the manual is used for the height range. Maker marks all dimensions and weights as estimates that vary by region.

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

Width606Height369Depth63mm(23.9 × 14.5 × 2.5 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Spec page 60.6 x 36.9 x 6.3 cm. The manual gives 606 x 369 x 63 mm.

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

Not available

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

8.1kg(17.9 lb)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Net Weight with Stand 8.1 kg (estimate, varies by region).

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

5.4kg(11.9 lb)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Net Weight without Stand 5.4 kg (estimate, varies by region).

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.

Width860Height490Depth163mm(33.9 × 19.3 × 6.4 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Box Dimension (W x H x D) 86.0 x 49.00 x 16.3 cm. The manual gives 860 x 490 x 163 mm.

Box weight

11.8kg(26 lb)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Gross Weight 11.8 kg (estimate, varies by region).

Power

• EU energy class SDRF4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 3 class F.
  ABCDEFG
• EU energy class HDRG4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 5 class G.
  ABCDEFG

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.

Internal4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 24 power supply type Internal.

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

Not available

Input voltage

100-240 V AC, 50/60 Hz1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Voltage 100-240 V, 50/60 Hz.

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.

Not available

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

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.

25.3W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 4 on mode power demand in SDR 25.3 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.

27W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 6 on mode power demand in HDR 27.0 W.

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

0.5W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 8 standby 0.5 W. The manual says less than 0.5 W.

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

0.3W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Row 7 off mode 0.3 W. The manual says less than 0.3 W.

Energy per 1000 h SDR

25kWh5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2688398.pdfRead 14 October 2026Printed label 25 kWh/1000h.

Energy per 1000 h HDR

27kWh5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_2688398.pdfRead 14 October 2026Printed label 27 kWh/1000h.

Certifications

VESA ClearMR

Not available

VESA AdaptiveSync Display

480Hz1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Certificate list names both VESA AdaptiveSync Display 240Hz and VESA AdaptiveSync Display 480Hz. The higher number is stored.

TÜV certifications

Flicker-free1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Certificate list TUV Flicker-free.

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.

Software3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026OSD Blue Light Filter (Level 1 to 4) is a selectable software filter. The maker lists no hardware low-blue-light certificate.

ENERGY STAR

Not available

TCO Certified

Not available

EPEAT

Not available

Colour certifications

Not available

Other certifications

FSC MIX1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Certificate list FSC MIX.

In the box

In the box

OLED Monitor, Quick Start Guide, Warranty Card, Power Cord, ROG Pouch, ROG Sticker, Monitor Base, Wall Mount Kit, Microfiber Cloth, USB Type-C cable (optional), HDMI cable (optional), DP cable (optional), USB cable (optional), Feature label (optional)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Accessories list on the spec page differs by region and names a DisplayPort 2.1 (DP80) cable, HDMI Ultra High Speed Cable, USB 3.2 cable, USB-C cable and a VESA mount kit. The manual package list is stored verbatim.

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

Type	Count
Power Cord	1
DisplayPort 2.1 (DP80) cable	Not available
HDMI Ultra High Speed Cable	Not available
USB 3.2 cable	Not available
USB-C cable	Not available

Source3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026Package list marks the power cord as standard and the USB-C, HDMI, DP and USB cables as optional. The maker spec page accessories list (varies by region) names the DisplayPort 2.1 (DP80), HDMI Ultra High Speed, USB 3.2 and USB-C cables, and Guru3D and Tom's Hardware found these cables in their boxes. Counts are only stored for the power cord.

Warranty

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 pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm/specRead 14 October 2026Warranty 3 years (including panel burn-in). Country terms can differ.

Dead pixel policy

Not available

Links

Product page

rog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwm2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-swift-oled-pg27ucwmRead 14 October 2026Global exact-model feature page.

Spec sheet

Not available

Manual

dlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdf3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/PG27UCWM/ASUS_PG27UCWM_UM_EN.pdfRead 14 October 2026ASUS English user guide for PG27UCWM, release date 2026/10/02 on the maker support page. Full specification, menu and timing chapters read.

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.

26883984EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_2688398_EN.pdfRead 14 October 2026Information sheet for model identifier PG27UCWM.