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ASUS ROG Strix XG27ACS 27-inch Fast IPS WQHD 2560x1440 180Hz 1ms GtG DisplayHDR 400 G-Sync FreeSync USB-C Gaming Monitor

Name: ASUS ROG Strix XG27ACS 27-inch Fast IPS WQHD 2560x1440 180Hz 1ms GtG DisplayHDR 400 G-Sync FreeSync USB-C Gaming Monitor
Brand: ASUS
SKU: 90LM09Q0-B01170
Price: 373.89 EUR
Availability: OutOfStock

Brand:

ASUS

CODE (SKU):

90LM09Q0-B01170

€314.19 €349.10

€373.89 inc. VAT

Out of stock

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Product Code

04:463296

EAN Code

4711387406052

Manufacturer

ASUS

Quick Specs

Panel

27" Fast IPS · 16:9

Resolution + Refresh

WQHD 2560×1440 · 180Hz · 1ms

HDR + Sync

DisplayHDR 400 · G-Sync + FreeSync

Connectivity

HDMI 2.0 · DP 1.4 · USB-C (DP Alt)

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Competitive EU pricing

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Description
Features

Singular Selected · ROG Strix Premium

ASUS ROG Strix XG27ACS 27" WQHD 180Hz USB-C Gaming Monitor

Premium 27" Fast IPS WQHD gaming monitor with USB-C laptop docking — 180 Hz, 1 ms GtG, DisplayHDR 400, dual G-Sync + FreeSync, full ergonomic stand.

WQHD 1440p · 180Hz · 1ms GtGDisplayHDR 400 · 400 cd/m²USB-C DP Alt + USB hubFull ergo stand · 3-Year

The ASUS ROG Strix XG27ACS (90LM09Q0-B01170) is a premium 27-inch QHD gaming monitor that doubles as a laptop docking station — 2560 × 1440 Fast IPS at 180 Hz with a true 1 ms GtG response time, VESA DisplayHDR™ 400 certification (400 cd/m² peak), and dual Adaptive-Sync certification (G-Sync Compatible + AMD FreeSync). The signature feature is the USB Type-C input with DisplayPort Alt Mode, which also acts as a USB hub — connect a single cable to your laptop for video, USB peripherals and (depending on model revision) charging. Standard DisplayPort 1.4 and HDMI 2.0 are also present, along with ELMB Sync, GameVisual / GamePlus / Shadow Boost gaming features, and a full ergonomic stand (Tilt + Swivel + Pivot + Height). ASUS DisplayWidget Center desktop app lets you adjust OSD with mouse instead of OSD joystick.

Best For

✓ Competitive WQHD gaming (180Hz)

✓ Hybrid work — laptop docking via USB-C

✓ Console gaming via HDMI 2.0

✓ Streamer setups (DisplayHDR 400)

✓ Multi-monitor desks (full ergonomic)

✓ Single-monitor power user setups

Key Features

WQHD Fast IPS · 180Hz · 1ms GtG

2560 × 1440 at 180 Hz on Fast IPS with true 1 ms GtG — sharper than 1080p, fast enough for competitive shooters and capable of accurate colour for streaming and content work.

USB-C DP Alt + USB hub

Single USB-C cable carries video and connects USB peripherals via the built-in hub — clean docking station experience for a laptop alongside the gaming PC connection.

VESA DisplayHDR 400 · 400 nits

True DisplayHDR 400 certification (not just HDR10 input) — meaningful highlight pop in supported games and content. 400 cd/m² peak with Fast IPS colour quality.

Full ergonomic stand · 3-year warranty

Tilt + Swivel + Pivot + Height adjustments on the ROG Strix stand, plus standard VESA mount. ASUS 3-year warranty backs the premium build quality.

Technical Specifications

Part Number	90LM09Q0-B01170
EAN	4711387406052
Manufacturer	ASUS
Series	Republic of Gamers (ROG) Strix
Model	ROG Strix XG27ACS
Screen Size	27"
Panel Type	Fast IPS · matte
Resolution	WQHD 2560 × 1440
Aspect Ratio	16:9
Refresh Rate	180 Hz
Response Time	1 ms (GtG — actual)
Brightness	400 cd/m² (peak)
Contrast	1000:1 (IPS typical)
Viewing Angles	178° / 178°
HDR	VESA DisplayHDR™ 400 certified
Adaptive-Sync	G-Sync Compatible + AMD FreeSync
Motion Blur	ELMB Sync (works with VRR simultaneously)
Gaming Features	GamePlus · GameVisual · Shadow Boost · DisplayWidget Center
Video Inputs	1× HDMI 2.0 · 1× DisplayPort 1.4 · 1× USB-C (DP Alt Mode)
USB Hub	USB Type-C DP Alt + USB hub function
Audio	3.5 mm headphone out
Stand	Full ergonomic: Tilt · Swivel · Pivot · Height
VESA Mount	100 × 100 mm (typical for XG27ACS)
Eye Care	Low Blue Light · Flicker Free
Power	External adapter
Colour	Dark Grey (ROG aesthetic)
Warranty	3-year ASUS manufacturer warranty

Frequently Asked Questions

Does USB-C charge my laptop?

The USB-C port carries DisplayPort Alt Mode video + USB hub data. Power Delivery for laptop charging depends on the regional model spec — check ASUS' tech-spec sheet for your unit for exact PD wattage if laptop charging is critical.

Is the 1 ms response time GtG or MPRT?

GtG (Grey-to-Grey) — a real measured response time on this Fast IPS panel. ASUS officially specifies 1 ms (GTG), not the MPRT marketing number.

Will it work with both Nvidia and AMD GPUs?

Yes — dual Adaptive-Sync certification covers G-Sync Compatible (Nvidia) and AMD FreeSync. LFC (Low Framerate Compensation) is supported for smoother gameplay at lower framerates.

What's the difference vs the TUF VG27AQ3A?

XG27ACS is the more premium ROG Strix line with USB-C input + DisplayHDR 400 certification + full ergonomic stand and 3-year warranty. TUF VG27AQ3A is a mid-tier alternative without USB-C input.

Singular Expert Insight

Choose the XG27ACS if you want premium WQHD gaming plus laptop docking via USB-C — strong hybrid pick that handles a desktop gaming PC, a work laptop and a console without switching cables. If you don't need USB-C, the ASUS TUF VG279QM1A (1080p 280 Hz) or VG279Q3A (1080p 180 Hz) save money. For top-end OLED gaming step up to ROG Swift OLED PG27UCDM, and for ultrawide curved gaming look at Samsung Odyssey G9 or LG UltraGear 34GS95QE.

Buyer's Guide

Buy it if

You want premium 27" WQHD 180 Hz gaming with DisplayHDR 400, USB-C laptop docking, full ergonomic ROG stand and dual G-Sync + FreeSync — covered by ASUS 3-year warranty.

Skip it if

You want 240 Hz+ competitive refresh, OLED panel, curved ultrawide canvas or you don't need USB-C (cheaper TUF VG279Q3A / VG27AQ3A alternatives exist).

Also consider

ASUS TUF VG279QM1A (1080p 280Hz), iiyama G-Master GB2795HSU-B1 (Fast VA 280Hz), or Samsung Odyssey G5 LS34C500 ultrawide for productivity-plus-gaming.