ASUS ROG Strix XG27ACS 27" Black

★★★★☆ 4.1 (7)

The 27-inch 2560x1440 Fast IPS panel delivers a 1ms response time and 180Hz refresh rate, covering 97% DCI-P3 for vibrant color accuracy. USB-C with DP Alt mode enables single-cable laptop connectivity, while the stand offers full height, tilt, swivel, and pivot adjustments. This monitor is ideal for 1440p competitive gamers who also edit photos or video and require a single, color-accurate display.

Screen 27"
Resolution 2560 x 1440
Panel IPS
Refresh 180 Hz
response time ms 1
adaptive sync G-Sync Compatible
HDR DisplayHDR 400
ASUS ROG Strix XG27ACS 27" Black monitor
68 Overall Score

No current retailer price

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Snapshot

The 30-Second Version

A 180Hz 1440p IPS monitor with top-tier color accuracy and a surprisingly good price. Buy it for speed and color, not for HDR or USB-C charging.

Pros & Cons

Pros

  • 180Hz and 1ms on a fast IPS panel is a killer combo for competitive gaming 91st
  • 97% DCI-P3 color coverage beats monitors costing hundreds more 82nd
  • USB-C with video input means one cable for a laptop setup 82nd
  • Full ergonomic stand with height, tilt, swivel, and pivot included 71st

Cons

  • HDR is basically fake at this brightness level
  • Only one HDMI and one DisplayPort, which is thin if you run console plus PC
  • USB-C caps at 7.5W, so it won't charge a laptop
  • Social proof is weak, buyers aren't talking about this one much yet

What owners think

How owner sentiment changed over time

Exclusive

Based on when customers actually wrote their reviews - so you can see whether early praise held up.

Owner sentiment has improved over time
1★2★3★4★5★Q2 '25: 4.0★ · 1 reviewQ3 '25: 5.0★ · 1 review11Q2 '25Q3 '25
Avg ratingHappy (4-5★)Unhappy (1-2★)Bar height = number of reviews

Based on 2 dated customer reviews, grouped by calendar quarter. Period analysis is in English.

The proof

Performance

The 180Hz refresh rate is the headline, but what surprised us is how snappy the 1ms response time feels in practice. ASUS's Fast IPS tech means you're getting OLED-like responsiveness without the burn-in anxiety. ELMB Sync lets you run blur reduction and variable refresh rate at the same time, which is rare on budget monitors. The 350 nits brightness is fine for most rooms, but HDR is more of a checkbox than a feature. DisplayHDR 400 is the bare minimum and the 1000:1 contrast ratio won't wow anyone in dark scenes.

Performance Percentiles

Color 82.4
Portability 68.1
Display 70.5
Feature 67.8
Ergonomic 90.9
Performance 81.8
Connectivity 62.9
Social Proof 23.4

Specifications

Full Specifications

Display

Size 27"
Resolution 2560x1440 (QHD)
Panel Type IPS
Aspect Ratio 16:9
Curved No
Screen Finish matte

Performance

Refresh Rate 180 Hz
Response Time 1
Adaptive Sync G-Sync Compatible

Color & HDR

Brightness 350 nits
Color Gamut 97% DCI-P3, 133% sRGB
Color Depth 8-bit
HDR DisplayHDR 400
HDR Support HDR400

Connectivity

HDMI Ports 1
DisplayPort 1
USB-C 1
Speakers No
Headphone Jack Yes

Ergonomics

Height Adjustable Yes
Tilt Yes
Swivel Yes
Pivot Yes
VESA Mount 100x100

Features

Webcam No
Touchscreen No
PIP/PBP No
Power 23
Weight 3.9 kg / 8.7 lbs

vs Competition

Stack this against the MSI MAG 271QPX QD-OLED E2 and the LG UltraGear 27GX790A-B. The MSI wins on pure image quality with its OLED panel, no contest. But you're paying a big premium and accepting OLED quirks like burn-in risk. The LG pushes higher refresh rates if you're a hardcore esports player. The XG27ACS counters with that excellent color accuracy and a much friendlier price. Against the Samsung Odyssey G60SD, the ASUS has better ergonomics and that USB-C port. If you're on a budget and want one monitor for gaming and color-sensitive work, the ASUS is the smarter buy. If you only care about competitive gaming at max speed, look at the LG.

Spec ASUS ROG Strix XG27ACS 27" LG UltraGear 45GX950A-B Dell UltraSharp U4025QW MSI MAG 271QPX QD-OLED E2 Alienware AW-Series AW3425DW Samsung Odyssey G60SD
Screen Size 27 45 39.70000076293945 27 34 27
Resolution 2560 x 1440 5120 x 2160 5120 x 2160 2560 x 1440 3440 x 1440 2560 x 1440
Panel Type IPS OLED IPS QD-OLED QD-OLED OLED
Refresh Rate 180 330 120 240 240 360
Response Time Ms 1 0.029999999329447746 5 0.029999999329447746 0.029999999329447746 0.029999999329447746
Adaptive Sync G-Sync Compatible FreeSync Premium Pro Adaptive-Sync FreeSync Premium Pro FreeSync Premium Pro FreeSync Premium Pro
Hdr DisplayHDR 400 DisplayHDR True Black 400 DisplayHDR 600 DisplayHDR True Black 400 DisplayHDR 400 True Black HDR10+
Compare Compare Compare Compare Compare
Product ColorPortabilityDisplayFeaturePerformanceConnectivitySocial Proof
ASUS ROG Strix XG27ACS 27" 82.468.170.567.881.862.923.4
LG UltraGear 45GX950A-B Compare 99.476.699.795.899.496.994.7
Dell UltraSharp U4025QW Compare 98.276.698.795.85699.397.9
MSI MAG 271QPX QD-OLED E2 Compare 99.157.877.4849881.499.3
Alienware AW-Series AW3425DW Compare 9973.985.889.99895.497.9
Samsung Odyssey G60SD Compare 90.44077.467.899.687.794.7

Price

Value & Pricing

In the US, we're seeing this monitor listed anywhere from $229 to $329. At $229 it's a steal. At $329 it's a harder sell. The best deal in our database is from the US listing at that lower end. Canadian buyers have a wider gap to navigate, CAD 280 to CAD 434. The CAD 280 option is the obvious play there. At the low end of either range, you're getting near-premium color performance for budget money.

Read more

Overview

The ASUS ROG Strix XG27ACS is a 27-inch 1440p IPS gaming monitor that nails the fundamentals. You get a 180Hz refresh rate, 1ms response time, and G-Sync compatibility in a fast IPS panel. It's not flashy, but it's the kind of monitor that just works for almost anyone. The standout stat here is the color coverage. 97% DCI-P3 and 133% sRGB put it in the top tier for color accuracy in this price bracket.

Common Questions

Q: Will the USB-C port charge my laptop while displaying video?

No, and that's the one bummer in an otherwise solid connectivity setup. The USB-C port only pushes 7.5W, which is fine for a phone or a small peripheral hub, but it won't keep a laptop topped up. You'll still need your laptop's power brick.

Q: Is this monitor good for console gaming on a PS5 or Xbox Series X?

Yes, with one caveat. The 1440p resolution and 120Hz support work great with current consoles via HDMI. But there's only one HDMI port, so if you also have a PC you want hooked up, you'll be swapping cables or using DisplayPort for the PC. Plan your setup accordingly.

Q: How is the HDR on this monitor?

Honest answer: don't buy this for HDR. DisplayHDR 400 is the lowest tier and 350 nits just isn't bright enough for real HDR pop. Treat it as a great SDR monitor that technically accepts an HDR signal. If HDR matters to you, save up for an OLED or a high-brightness mini-LED panel.

Who Should Skip This

If you want true HDR performance or deep blacks, skip this. The 1000:1 contrast ratio and 350 nits mean dark scenes look gray and bright scenes don't pop. Go get an OLED like the MSI MAG 271QPX QD-OLED E2 or a mini-LED monitor instead. Also skip it if you travel with your monitor, portability is this thing's weakest spot by a mile.

Verdict

Buy the ASUS ROG Strix XG27ACS if you want a fast, accurate, well-built 1440p gaming monitor without spending OLED money. It's one of the best color performers we've seen in this class, and the 180Hz panel keeps motion buttery. Just don't buy it for HDR. And don't expect USB-C to charge your laptop. At the low end of its price range, this is an easy recommendation.

Usage Scores

Overall (68.1)Gaming (68.1)Office (67.4)Creative (68.8)Portable (17.4)Professional (69)Entertainment (59.2)
  • Overall68.1
  • Gaming68.1
  • Office67.4
  • Creative68.8
  • Portable17.4
  • Professional69
  • Entertainment59.2

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