ROG Strix XG27ACS

General

Series

ROG Strix2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acsRead 23 October 2026Page title and breadcrumb: ROG Strix.

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

XG27ACS, 90LM09Q0-B01170, 90LM09Q0-B011B33Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Cover and section 3.2: model XG27ACS. The part numbers come from the ASUS eShop Canada and a German retailer.8Retailer pageebay.de/p/6066105645Read 23 October 2026Part number 90LM09Q0-B01170 for the ROG Strix XG27ACS on a German retailer listing.9Maker product pageeshop.asus.com/ca-en/90lm09q0-b011b3-rog-strix-xg27acs.htmlRead 23 October 2026ASUS eShop Canada lists Product Name XG27ACS with Part Number 90LM09Q0-B011B3.

GTIN / EAN

197105406070, 47113874060527Retailer pageamazon.com/dp/B0CV24GQ9WRead 23 October 2026Amazon US item details: model number XG27ACS, UPC 197105406070, ASIN B0CV24GQ9W. This is the US retail code. Amazon lists a 3 Year Warranty with ARR and DP cable, power cord, quick start guide and ROG pouch as included components.8Retailer pageebay.de/p/6066105645Read 23 October 2026eBay Germany product page for part number 90LM09Q0-B01170 shows GTIN 4711387406052. The Amazon US UPC covers model XG27ACS. Other EANs on BuildCores (4711636382458) are not tied to a model number and are not stored.

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

Not available

Status

Available1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026The maker's page is live with a where-to-buy link and the model is on sale at Amazon US.

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.

Not available

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

Not available

ColoursiThe maker's own colour names

Dark Gray3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 3.2 Chassis Colors: Dark Gray. RTINGS and Amazon call the body black. A white XG27ACS-W exists and is a separate color model.

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-strix-xg27acs/specRead 23 October 2026ROG Strix gaming monitor line on the maker's ROG gaming site.

Display

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

27in(68.6 cm)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Panel Size 27 inch.

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

Not available

Native resolution

2560 × 1440px1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026

Aspect ratio

16:91Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026

Pixel density

108.8ppi=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.

0.233mm1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Pixel Pitch 0.233 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.

Width596.74Height335.66mm(23.5 × 13.2 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Display Viewing Area (H x V) 596.74 x 335.66 mm, stored as width by height.

Curved

No14Press articlenotebookcheck.net/ASUS-ROG-Strix-XG27ACS-released-as-new-27-inch-gaming-monitor-with-affordable-price-tag.814412.0.htmlRead 23 October 2026The Notebookcheck deal article of 2024-04-19 says the monitor has no curved panel.

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

Not available

Screen surface

Matte1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Display Surface Anti-Glare, stored as matte. TechSpot also describes a matte anti-glare coating.

Anti-reflection coating

Anti-Glare1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Display Surface: Anti-Glare, verbatim.

Touchscreen

Not available

Panel

Panel type

Fast IPS1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026

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

Fast IPS1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026

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.

Not available

Local dimming

No10Measurementtechspot.com/review/2858-asus-rog-strix-xg27acsRead 23 October 2026Review: no local dimming functionality. RTINGS also lists no local dimming.

Dimming zones

Not available

Panel maker

BOE10Measurementtechspot.com/review/2858-asus-rog-strix-xg27acsRead 23 October 2026Review: The XG27ACS uses a BOE panel. The panel part 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.

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.

RGB stripe10Measurementtechspot.com/review/2858-asus-rog-strix-xg27acsRead 23 October 2026HUB Essentials Checklist: RGB stripe level text clarity. The review does not show a subpixel photo.

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.

8bits3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 3.2 Display Colors 16.7M (8 bit). FRC is not mentioned, so the method is left out.

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

Not available

Displayable colours

16.7 million1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Display Colors 16.7M, written as 16.7 million.

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.

97%1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Color Space (DCI-P3) 97%. The row label does not say coverage or volume. NotebookCheck's launch article and TechSpot's measured 96% coverage read it as coverage. The sRGB 133% row exceeds 100, so it is a volume figure and is not stored.

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

Not available

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

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.

1,000:11Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Contrast Ratio (Typ.) 1000:1.

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

350nits1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Brightness (Typ.) 350 cd/m2. The manual's own Brightness (Typ.) row reads 400 nits (Peak), so the page row is used for the typical figure.

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.

400nits1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Brightness (HDR, Peak) 400 cd/m2. The window size is not published.

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.

Not available

HDR formats

HDR101Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026HDR (High Dynamic Range) Support HDR10.

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 4001Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Certificate list names VESA DisplayHDR 400.6Certification listdisplayhdr.org/certified-productsRead 23 October 2026VESA certified DisplayHDR 400 list: ASUS XG27ACS with family models XG27ACSY, XG27ACSZ, XG27ACS-P, XG27ACS-J, XG27ACS-R, XG27ACS-W and XG27ACS-G, test spec version 1.1.

Viewing angle (horizontal)

178°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Viewing Angle (CR>=10) 178 / 178.

Viewing angle (vertical)

178°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026

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 2.0	DisplayPort 1.4	USB-C
2560 × 1440Native	144Hz	180Hz	180Hz

Source1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Refresh Rate (max) 180 Hz. Digital Signal Frequency lists USB-C and DisplayPort 48 to 180 Hz (V) and HDMI 48 to 144 Hz (V). The rows hold native 2560 x 1440 only. DisplayPort is listed as 1.4 (HBR3). The DP version over USB-C is not stated.3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 3.4 Supported Timing List shows the 2560 x 1440 detail timings at 155, 160, 165 and 180 Hz only in the DisplayPort and Type-C columns, with 144 Hz also in the HDMI column. This agrees with the maker's 144 Hz HDMI vertical range and TechSpot, which states HDMI 2.0 tops out at 144 Hz. Lower-resolution timing rows are not stored.

Show as source table

Width (px)	Height (px)	Input	Input version	Maximum accepted rate (Hz)
2560	1440	DisplayPort	1.4	180
2560	1440	USB-C	Not available	180
2560	1440	HDMI	2.0	144

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

180Hz=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.

180Hz=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.

180Hz=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.

144Hz=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.

180Hz=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.

180Hz1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Refresh Rate (max) 180 Hz. The monitor carries a VESA AdaptiveSync Display 180Hz certificate and the page lists no overclock 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.

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

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.

VESA AdaptiveSync Display, FreeSync, G-SYNC Compatible1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026VRR Technology Yes (Adaptive-Sync). Certificate list names AMD FreeSync (no Premium tier) and G-SYNC Compatible. VESA AdaptiveSync Display certification is covered by the 180 Hz certificate.

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

Low framerate compensation

Not available

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

1ms1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Response Time 1 ms (GTG). Test conditions are not published.

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

Variable OD (levels 0 to 20)3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026OSD section 3.1.2: Variable OD runs 0 to 20 levels. TechSpot lists 21 slider options and TechRadar lists 20 levels.

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

Yes2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acsRead 23 October 2026Overview: ELMB Sync enables ELMB, a backlight strobing mode, together with variable refresh rate.

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

ELMB Sync2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acsRead 23 October 2026Overview names ELMB-SYNC. The manual's OSD menu names ELMB and ELMB SYNC. Stored as ELMB Sync.

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

Yes2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acsRead 23 October 2026Overview: ELMB Sync enables ELMB together with variable refresh rate. The manual says ELMB alone needs VRR off and works at 144, 165 or 180 Hz.

Flicker-free (claimed)

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026

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.

4ms11Reviewmonitornerds.com/asus-rog-strix-xg27acs-reviewRead 23 October 2026Review states the input lag sits at 4 ms at 180 Hz. Test device, resolution and method are not described. TechSpot reports 0.5 ms of processing delay at the maximum refresh rate, which is a different measure.

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.

4.5ms10Measurementtechspot.com/review/2858-asus-rog-strix-xg27acsRead 23 October 2026Average response time 4.5 ms at 180 Hz with Variable OD level 10, the default. Native 2560 x 1440. The article shows response time and cumulative deviation charts and does not name the measuring tool or the transitions averaged. Level 15 averaged 3.5 ms with visible inverse ghosting.

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

Not available

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

1,117:110Measurementtechspot.com/review/2858-asus-rog-strix-xg27acsRead 23 October 2026Review states an IPS contrast of 1,117:1. Brightness setting and test pattern are not stated.

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

390nits10Measurementtechspot.com/review/2858-asus-rog-strix-xg27acsRead 23 October 2026Review states maximum brightness of around 390 nits and a minimum of 35 nits. Picture mode and window size are not stated.

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.

Not available

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
DisplayPort	1.4	1
HDMI	2.0	1
USB-C	Not available	1

Source1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026I/O Ports: DisplayPort 1.4 x1 (HBR3), HDMI (v2.0) x1, USB-C x1 (DP Alt Mode). TechRadar, TechSpot and Amazon list two HDMI ports. The maker page and the manual's rear-panel list show one.

HDMI ports

1=CalculatedFrom Video inputs

DisplayPort ports

1=CalculatedFrom Video inputs

Highest HDMI version

2.0=CalculatedFrom Video inputs

Highest DisplayPort version

1.4=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-strix-xg27acs/specRead 23 October 2026USB-C x1 (DP Alt Mode) with 7.5 W Power Delivery. The 7.5 W figure is not stored because usb_c_power_delivery_w takes whole watts.

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.

Not available

Thunderbolt

Not available

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

Not available

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.

Not available

KVM switch

No10Measurementtechspot.com/review/2858-asus-rog-strix-xg27acsRead 23 October 2026Review: there is no USB hub, so no KVM switch functionality.

Daisy chain (MST)

Not available

Ethernet

No3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 1.4.1 rear panel list: AC-IN, HDMI, DisplayPort, Type-C, earphone jack, Kensington lock. No Ethernet.

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-strix-xg27acs/specRead 23 October 2026Earphone jack: Yes.

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/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 1.4.1 rear panel list shows an earphone jack and no microphone input.

Optical out

No3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 1.4.1 rear panel list shows no optical output.

Picture in picture

Not available

Picture by picture

Not available

Audio and camera

Speakers

No1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Audio, Speaker: 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.

120mm1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Height Adjustment 0~120 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-strix-xg27acs/specRead 23 October 2026Tilt Yes (+20 to -5 degrees), stored as 5 forward and 20 backward.

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

Left45°Right45°1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Swivel Yes (+45 to -45 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-strix-xg27acs/specRead 23 October 2026Pivot Yes (+90 to -90 degrees).

Removable stand

Yes3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 2.3: the detachable stand is designed for VESA wall mount.

VESA mount

100 x 1001Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026VESA Wall Mounting 100x100 mm.

VESA adapter needed

Not available

Security lock slot

Yes1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026

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/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 1.5.1 lists a 5-way joystick-style button and hotkey buttons. DisplayWidget Center on the maker page controls the OSD from Windows.

Desktop software

DisplayWidget Center1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026DisplayWidget Center is listed under DisplayWidget.

User firmware updates

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

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

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.

No2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acsRead 23 October 2026The overview page shows no lighting feature. RTINGS lists RGB lighting as No and TechSpot says this model has no RGB LED lighting.12Reviewrtings.com/monitor/reviews/asus/rog-strix-xg27acsRead 23 October 2026Public Differences section table: XG27ACS RGB Lighting No. The measured result cells are members only and are not used.

Gaming menu features

GamePlus, FPS Counter, Crosshair, Dynamic Crosshair, Timer, Stopwatch, Display Alignment, GameVisual, Shadow Boost, Dynamic Shadow Boost, GameFast Input, Aspect Control1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Features list: GamePlus, Game Visual, Shadow Boost, GameFast Input technology, Aspect Control. Dynamic Crosshair and Dynamic Shadow Boost come from the overview page.3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 1.5.1 and 3.1.2: GamePlus (FPS Counter, Crosshair, Timer, Stopwatch, Display Alignment), GameVisual, Shadow Boost.

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.

Width614.81Height (lowest)392.88Height (highest)512.88Depth218.82mm(24.2 × 15.5 to 20.2 × 8.6 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026The page gives 61.48 x 51.29 x 21.88 cm without naming the stand position. The manual's specifications give the exact highest and lowest heights, which are stored.3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 3.2: 614.81 x 512.88 x 218.82 mm (highest) and 614.81 x 392.88 x 218.82 mm (lowest).

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

Width614.81Height367.08Depth60.12mm(24.2 × 14.5 × 2.4 in)3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 3.2: 614.81 x 367.08 x 60.12 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.

6.61kg(14.6 lb)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Net Weight with Stand 6.61 kg, an estimate that varies by region.3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 3.2 Net Weight (Esti.) 6.61 kg.

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

3.93kg(8.7 lb)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Net Weight without Stand 3.93 kg, an estimate that varies by region.3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 3.2 Net Weight without stand 3.93 kg.

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.

Width780Height226Depth515mm(30.7 × 8.9 × 20.3 in)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Box Dimension 78.00 x 22.60 x 51.50 cm (W x H x D).3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 3.2 Box Dimension 780 x 226 x 515 mm (W x H x D).

Box weight

10.1kg(22.3 lb)1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Gross Weight 10.1 kg.3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 3.2 Gross Weight (Esti.) 10.10 kg.

Power

• EU energy class SDRF4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_1854532_EN.pdfRead 23 October 2026Row 3 class F.
  ABCDEFG
• EU energy class HDRG4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_1854532_EN.pdfRead 23 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_1854532_EN.pdfRead 23 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 Hz3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 3.2 Voltage Rating 100~240V, 50/60Hz.

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.

26W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_1854532_EN.pdfRead 23 October 2026Row 4 on-mode power demand in SDR 26.0 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.

45W4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_1854532_EN.pdfRead 23 October 2026Row 6 on-mode power demand in HDR 45.0 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_1854532_EN.pdfRead 23 October 2026Row 8 standby 0.5 W. The maker page and manual say 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_1854532_EN.pdfRead 23 October 2026Row 7 off mode 0.3 W. The maker page and manual say less than 0.3 W.

Energy per 1000 h SDR

26kWh5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_1854532.pdfRead 23 October 2026Printed label value 26 kWh/1000h.

Energy per 1000 h HDR

45kWh5EU energy label (EPREL)eprel.ec.europa.eu/labels/electronicdisplays/Label_1854532.pdfRead 23 October 2026Printed label value 45 kWh/1000h.

Certifications

VESA ClearMR

Not available

VESA AdaptiveSync Display

180Hz1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026

TÜV certifications

Flicker-free, Low Blue Light1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Certificate list: TUV Flicker-free, TUV Low Blue Light.

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.

Hardware3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026OSD section: the monitor uses a low blue light panel and complies with TUV Rheinland Low Blue Light Hardware Solution at factory default.

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-strix-xg27acs/specRead 23 October 2026Certificate list: FSC MIX.

In the box

In the box

LCD Monitor, Monitor Stand, Monitor Base, Quick Start Guide, Warranty Card, Power Cord, DisplayPort cable, ROG Sticker, ROG Pouch1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026Accessories (vary by regions): DisplayPort cable, power cord, quick start guide, ROG pouch, ROG sticker, warranty card. The monitor, stand and base come from the manual's package contents. The manual also lists an optional HDMI cable, which is not stored.3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Section 1.2 package contents: LCD monitor, stand, base, quick start guide, warranty card, power cord, HDMI cable (optional), DP cable (optional), ROG sticker, ROG pouch.

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

Type
Power cord
DisplayPort cable

Source3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026Power cord and DisplayPort cable. The HDMI cable is optional by market. Counts are not stated.

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.

3years4EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_1854532_EN.pdfRead 23 October 2026Minimum duration of the general guarantee offered by the supplier: 3 years. EU market. Amazon US lists a 3 year warranty too.

Dead pixel policy

Not available

Links

Product page

rog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs2Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acsRead 23 October 2026

Spec sheet

rog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/spec1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026

Manual

dlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdf3Owner's manualdlcdnets.asus.com/pub/ASUS/LCD%20Monitors/XG27ACS/ASUS_XG27ACS_English.pdfRead 23 October 2026ASUS XG27ACS user guide in English, 34 pages, listed on the maker's support page with a release date of 2026-10-06. The copyright line reads 2023.

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.

18545324EU energy label (EPREL)eprel.ec.europa.eu/fiches/electronicdisplays/Fiche_1854532_EN.pdfRead 23 October 2026Model identifier XG27ACS, registration number 1854532. The white XG27ACS-W has its own entry, 1885563.