IPS#2 in our IPS rankingsBest budget 1440p
ASUS ROG Strix XG27ACS review
A 27-inch 1440p 180Hz Fast IPS with accurate color, ELMB Sync, and a USB-C video input: the budget monitor that performs above its price.
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Quick verdict
The XG27ACS is the monitor we suggest when the budget is tight and you still want a good all-round 1440p screen. Tom's Hardware found near-perfect color accuracy out of the box, a sharp and bright image, and flexible motion settings, concluding it performs like a far pricier display. TFTCentral also lists it as its budget 27-inch 1440p pick.
It is still a mainstream IPS: contrast is typical of IPS, HDR is basic DisplayHDR 400 without local dimming, and HDMI 2.0 limits consoles. The USB-C port carries video only, so it will not charge a laptop.
27″ · 1440p · 180Hz · IPS (Fast IPS) · ELMB Sync
Buy it if
- You want a well-calibrated 1440p screen for games and desk work on a budget.
- You play at 100 to 180 fps and want optional strobing that works with VRR.
- You want a stand with full height, swivel, and pivot adjustment.
Skip it if
- You want real HDR; get a Mini LED model such as the AOC U27G4XM or an OLED.
- You connect a PS5 or Xbox and want 4K 120Hz.
- You need USB-C charging.
Key specifications
| Exact model | XG27ACS — XG27ACS-W is a white version; bundles with a light bar use different listings |
|---|---|
| Size / aspect | 27″ / 16:9 |
| Resolution | 2560×1440 |
| Refresh rate | 180Hz |
| Dual mode | No |
| Panel family | IPS |
| Panel subtype | Fast IPS |
| Subpixel layout | RGB stripe (LCD) |
| Coating | Matte anti-glare |
| Curvature | Flat |
| Backlight | Edge-lit LED |
| Motion technology | ELMB Sync (backlight strobing that can run with VRR) |
| Adaptive sync / VRR | Adaptive-Sync; G-SYNC Compatible and FreeSync |
| HDR | VESA DisplayHDR 400 |
| DisplayPort | 1x DisplayPort 1.4 (180Hz) |
| HDMI | HDMI 2.0 (144Hz max) |
| USB-C | Video input only (up to 180Hz); no charging |
| USB ports | None |
| KVM switch | No |
| Audio | Headphone jack; no speakers |
| Stand | Height (about 4.7 in), tilt, 45° swivel, 90° pivot; tripod socket |
| VESA mount | 100 x 100 mm |
| Warranty | Unknown (not verified for the US) |
Specifications are manufacturer-stated unless marked as measured. “Unknown” means we could not verify the value, not that it is zero or absent.
Advantages and drawbacks
Advantages
- Very accurate out-of-the-box color, per Tom's Hardware.
- ELMB Sync can combine strobing with VRR.
- USB-C video input for laptops and handhelds.
- Fully adjustable stand with pivot and a tripod socket.
Drawbacks
- IPS contrast and basic DisplayHDR 400.
- HDMI 2.0 tops out at 144Hz.
- USB-C carries video only; no charging or hub.
- No speakers.
What independent testing reports
| Metric | Reported result | Conditions | Source |
|---|---|---|---|
| Overdrive | Best balance at level 7 of 20 | Tom's Hardware overdrive assessment at 180Hz | Tom's Hardware, July 3, 2024 |
These are third-party results, not our tests. Different outlets use different methods, so compare numbers only within the same source.
Motion, response, and latency
At 180Hz the XG27ACS is a clear step up from 60Hz or 144Hz office monitors, though it is not an esports specialist. Tom's Hardware found 20 overdrive levels and settled on level 7 as the best balance between blur reduction and visible overshoot. ELMB Sync strobes the backlight while VRR stays active, trading some brightness for clearer motion; how clean it looks depends on the frame rate and settings.
Image quality and HDR
Tom's Hardware found color accuracy excellent without calibration and the image sharp, bright, and colorful for its class. As an edge-lit IPS, contrast is around the usual 1,000:1, so dark scenes look grayer than on VA or OLED, and DisplayHDR 400 does not deliver meaningful HDR contrast.
Connectivity, PC, and console notes
DisplayPort 1.4 runs the full 180Hz; HDMI 2.0 is limited to 144Hz; USB-C accepts video at up to 180Hz but does not charge or pass USB data. There are no USB-A ports.
Warranty and ownership
As an LCD there is no burn-in concern. We could not verify ASUS's US warranty length for this model; check the listing.
Warranty: Unknown (not verified for the US)
Alternatives worth comparing
AOC U27G4XM
27″ · 4K · 160Hz · dual mode 1080p at 320Hz · IPS (Fast IPS)
Costs more but adds 4K, Mini LED HDR, and a 1080p 320Hz mode.
Alienware AW2726DM
27″ · 1440p · 240Hz · QD-OLED
An entry-level QD-OLED for dim rooms: far more contrast, lower brightness, burn-in care needed.
Questions buyers ask
Can it charge my laptop over USB-C?
No. Tom's Hardware found the USB-C port carries video only.
Does ELMB Sync work with G-SYNC Compatible?
ASUS designs ELMB Sync to run strobing and variable refresh together. Expect lower brightness when it is on.
Final recommendation
If you want a dependable 1440p gaming and work monitor for the least money, the XG27ACS is our budget IPS pick. Spend more on the AOC U27G4XM if HDR and 4K text matter to you.
Sources
- Asus ROG Strix XG27ACS QHD 180 Hz gaming monitor review — Tom's Hardware, July 3, 2024 (independent testing)
- The Best Recommended Gaming Monitors 2026 — TFTCentral, June 19, 2026 (independent testing)
- Amazon listing for this exact model (ASIN B0CV24GQ9W), matched on September 30, 2026 by its listing title. We do not show Amazon prices or ratings.
First published . Last substantive update .