Monitors / Compare
ASUS ROG Strix XG27ACS vs Dell Alienware AW2521HF
Product A: ASUS
98 of 172 known
Change ASUS ROG Strix XG27ACS
Compare the Dell Alienware AW2521HF with
Product B: Dell
83 of 172 known
Change Dell Alienware AW2521HF
76 of 164 fields differ
- 43 different values
- 33 known for one only
- 26 the same
- 62 missing for both
Biggest differences
Each bar uses the scale of all 179 monitors.
- Standby powerLower is betterA: 0.5WB: 0.3WDell is 0.2 W lower.
- Refresh rateA: 180HzB: 240HzDell is 60 Hz higher.
- Power use SDR (EU label)Lower is betterA: 26WB: 20.4WDell is 5.6 W lower.
- Pixel densityA: 108.8ppiB: 89.9ppiASUS is 18.9 ppi higher.
- Brightness (typical, SDR)A: 350nitsB: 400nitsDell is 50 nits higher.
Refresh rate per resolution
The best rate over any port. Bars run from 0 to 1200 Hz.
2560 × 1440Native for A
A180Hz
BNot listed
1920 × 1080Native for B
ANot listed
B240Hz
Size, drawn to scale
Front and side. Solid lines show the stand at its lowest. Dashed lines show it at its highest.
- AASUS: 614.8 × 367.1 mm
- BDell: 556.3 × 328.2 mm
We have no stand height for Dell, so it is drawn without its stand.
Weight
0 to 15 kg
Weight with stand
A6.61kg
B7.46kg
Weight without stand
A3.93kg
B4.15kg
Box weight
A10.1kg
B11.72kg
All 172 fields
Every value links to where we found it.
General
3 of 8 differ
Series
Model numbers
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.
AW2521HF, AW2521HFb1Maker product pagedell.com/support/product-details/en-us/product/dell-aw2521hf-monitor/overviewRead 5 October 2026Exact marketing and regulatory names independently checked on original manual cover. HFL colour variant and later HFA regional model are not merged.2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own original guide cover expressly lists marketing AW2521HF and regulatory AW2521HFb. The paired HFL variant is separately identified and not merged into this record.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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.
Not available
Announced
Not available
Not available
Status
Not available
Predecessor
Not available
Not available
Successor
Not available
Launch price (US)
Not available
Not available
Launch price (EU)
Not available
Not available
Markets
Not available
Not available
Colours
Dark Side of the Moon2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Product Features explicitly assigns Dark Side of the Moon to AW2521HF. Lunar Light belongs to AW2521HFL and is not a second HF colour.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Display
7 of 12 differ
Screen size
24.5in(62.2 cm)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Viewable screen diagonal
Not available
24.5in(62.2 cm)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Native resolution
2560 × 1440px1Maker product pagerog.asus.com/monitors/27-to-31-5-inches/rog-strix-xg27acs/specRead 23 October 2026
1920 × 1080px2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Aspect ratio
16:92Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Pixel density
108.8ppi
89.9ppi
Pixel pitch
0.2832mm2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own horizontal pitch 0.2832 mm. Vertical 0.2802 mm is distinct and does not share this scalar. Explicit active dimensions agree at maker precision.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Active display area
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.
Width543.744Height302.616mm(21.4 × 11.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Curved
Curvature radius
Not available
Not available
Screen surface
Anti-reflection coating
Anti-glare (Haze 25%, 3H hard coating)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own exact A03 December 2020 guide specifies anti-glare treatment of the front polarizer, Haze 25% and 3H hard coating.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact anti-glare front-polarizer treatment, Haze 25% and 3H hard coating.
Touchscreen
Not available
Not available
Panel
12 of 31 differ
Panel type
Fast IPS2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Panel type (as published)
Fast IPS2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Backlight
Not available
Not available
Local dimming
Not available
Dimming zones
Not available
Not available
Panel maker
Panel part number
Not available
Panel generation
Not available
Not available
Subpixel layout
Not available
Colour depth
Colour depth method
Not available
Displayable colours
16.78 million2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
sRGB coverage
Not available
99%2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own manual typical 99% sRGB coverage. CIE reference is unstated.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Adobe RGB coverage
Not available
Not available
Rec. 2020 coverage
Not available
Not available
NTSC coverage
Not available
Not available
Factory calibrated
Not available
Not available
Claimed Delta E
Not available
Not available
Paper calibration report in box
Not available
Not available
Hardware calibration support
Not available
Not available
Static contrast ratio
1,000:12Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Brightness (typical, SDR)
400nits2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Brightness (maker minimum)
Not available
Not available
Peak brightness (HDR)
Not available
HDR peak test window
Not available
Not available
Full-screen brightness
Not available
Not available
HDR formats
Not available
HDR certification
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.
Not available
Viewing angle (horizontal)
178°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Viewing angle (vertical)
178°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Refresh rate and motion
12 of 22 differ
Refresh rate per resolution and port
AASUS ROG Strix XG27ACS
| 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.
BDell Alienware AW2521HF
| Resolution | HDMI 2.0 | DisplayPort 1.2 |
|---|---|---|
| 1920 × 1080Native | 240Hz | 240Hz |
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Resolution Specifications expressly gives maximum native 1920 x 1080 at 240 Hz for DP 1.2 and HDMI 2.0, not just timing presets. Bit depth, chroma and compression remain unproved.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Max refresh rate
180Hz
240Hz
Max refresh rate at native resolution
180Hz
240Hz
Max refresh rate over DisplayPort
180Hz
240Hz
Max refresh rate over HDMI
144Hz
240Hz
Max refresh rate over USB-C
180Hz
Not available
Max refresh rate at 10-bit
Not available
Not available
Native refresh rate
240Hz2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Overclocked refresh rate
Not available
Not available
Dual mode
Not available
Not available
Minimum fixed refresh rate
Not available
Not available
Adaptive sync technologies
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.
Adaptive-Sync, FreeSync Premium, G-SYNC Compatible2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20264Reviewpcmonitors.info/reviews/dell-alienware-aw2521hfRead 5 October 2026Exact review verifies DP 1.2 and HDMI 2.0 Adaptive-Sync for AMD FreeSync at native 240 Hz. G-SYNC Compatible mode works only over DP. Generic protocol is separate from certification.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
VRR range per port
Not available
Not available
Low framerate compensation
Not available
Not available
Response time (maker GtG claim)
1ms2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own fastest maker GtG claim 1 ms in Extreme, which can cause visible artifacts. Super Fast 2 ms and Fast 4 ms are separate.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Response time (maker MPRT claim)
Not available
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.
Fast, Super Fast, Extreme2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Motion blur reduction
Blur-reduction technology
Not available
Blur reduction works with VRR
Not available
Flicker-free (claimed)
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Black frame insertion
Not available
Not available
Measured
5 of 12 differ
Input lag at maximum refresh rate
Input lag at 60 Hz
Not available
Average response time (measured)
Not available
Overshoot (measured)
Not available
Not available
Contrast ratio (measured)
Not available
SDR brightness (measured)
HDR brightness in a real scene (measured)
Not available
Not available
PWM flicker frequency (measured)
Not available
Not available
VRR range (measured)
Not available
Not available
Colour accuracy (measured Delta E)
Not available
Not available
Gray uniformity (measured)
Not available
Not available
Reflections (measured)
Not available
Not available
Connectivity
7 of 19 differ
Video inputs
AASUS ROG Strix XG27ACS
| Type | Version | Count |
|---|---|---|
| DisplayPort | 1.4 | 1 |
| HDMI | 2.0 | 1 |
| USB-C | Not available | 1 |
BDell Alienware AW2521HF
| Type | Version | Count |
|---|---|---|
| DisplayPort | 1.2 | 1 |
| HDMI | 2.0 | 2 |
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
HDMI ports
1
2
DisplayPort ports
1
1
Highest HDMI version
2.0
2.0
Highest DisplayPort version
1.4
1.2
HDMI features
Not available
Not available
USB-C video (DP Alt Mode)
No2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no USB-C socket.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
USB-C power delivered
Not available
Not available
Thunderbolt
Not available
Not available
USB upstream ports
AASUS ROG Strix XG27ACS
Not availableBDell Alienware AW2521HF
| Connector | USB version | Count |
|---|---|---|
| USB-B | 3.0 | 1 |
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
USB downstream hub ports
AASUS ROG Strix XG27ACS
Not availableBDell Alienware AW2521HF
| Connector | USB version | Count |
|---|---|---|
| USB-A | 3.0 | 4 |
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own four USB-A peripheral sockets, including one BC1.2 charging port at up to 2 A. Charging does not add a fifth socket.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
KVM switch
Not available
Daisy chain (MST)
Not available
Not available
Ethernet
No2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no Ethernet socket.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
3.5 mm headphone output
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own headphone output is separate from rear speaker line-out, which expressly does not support headphones.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
3.5 mm microphone input
No2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has headphone/line analog outputs but no microphone input.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Optical out
No2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own complete physical inventory has no optical output.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Picture in picture
Not available
Not available
Picture by picture
Not available
Not available
Smart features
None of 4 known
Smart platform
Not available
Not available
Wi-Fi
Not available
Not available
Bluetooth
Not available
Not available
Remote control
Not available
Not available
Audio and camera
0 of 5 differ
Speakers
Number of speakers
Not available
Not available
Speaker power per channel
Not available
Not available
Webcam
Not available
Not available
Microphone
Not available
Not available
Ergonomics and controls
6 of 15 differ
Stand height adjustment
130mm2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Tilt
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.
Forward5°Backward21°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Swivel
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).
Left20°Right20°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Pivot
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).
Counterclockwise90°Clockwise90°2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Removable stand
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
VESA mount
100 x 1002Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
VESA adapter needed
Not available
Not available
Security lock slot
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
On-screen menu controls
Joystick, Buttons, Software2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20263Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide2_en-us.pdfRead 5 October 2026Own exact Dell Display Manager guide provides direct brightness, contrast and preset controls. This proves software monitor settings beyond desktop window placement. AWCC lighting alone is not the proof.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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.
Alienware Command Center (AWCC) and Dell Display Manager (DDM)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own AWCC/AlienFX section controls lighting. Display Manager compatibility is separately named and its exact guide proves direct monitor image controls.3Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide2_en-us.pdfRead 5 October 2026Own exact Dell Display Manager guide names DDM and establishes direct monitor image controls. Own original user guide separately names Alienware Command Center for AlienFX lighting.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
User firmware updates
Not available
Not available
Ambient light sensor
Not available
Not available
Presence sensor
Not available
Not available
RGB lighting
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.
Yes2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own AlienFX lighting zones allow RGB colour codes and multiple colours, not only an ordinary power LED.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
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.
Timer, Frame Rate, Display Alignment, Dark Stabilizer2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
OLED care
None of 3 known
OLED care
Not available
Not available
Burn-in covered by warranty
Not available
Not available
Burn-in warranty length
Not available
Not available
Dimensions and weight
7 of 7 differ
Dimensions with stand
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).
Width556.29Depth251.92mm(21.9 × 9.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own width and depth are direct. Height endpoints are omitted because published extended/compressed difference 104.87 mm differs from the stated 130 mm travel. Neck/body pose scope is unresolved.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Dimensions without stand
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.
Width556.29Height328.24Depth72.95mm(21.9 × 12.9 × 2.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Stand footprint
Not available
Width465.3Depth251.92mm(18.3 × 9.9 in)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own supplied stand width 465.3 mm and depth 251.92 mm. No inferred rectangular area.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Weight with stand
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.
7.46kg(16.4 lb)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own physical table with stand assembly and cables.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact later edition states stand assembly and cables 7.46 kg.
Weight without stand
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.
4.15kg(9.1 lb)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact A03 December 2020 manual publishes 4.15 kg without stand or cables. Earlier manual and launch claims 3.55 kg, and reviewed unit 3.54 kg, conflict. A hardware revision or weight-scope explanation is unproved, so no cause is inferred.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Exact later edition states without stand or cables 4.15 kg. Earlier-edition 3.55 kg is not silently transferred.
Box dimensions
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).
Not available
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.
11.72kg(25.8 lb)2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Power
10 of 13 differ
Power supply
Internal2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Adapter rating
Not available
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.
100-240 V AC, 50/60 Hz2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Power use (typical)
Not available
17.18W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own electrical Pon 17.18 W uses the Energy Star reference test method. EU on-mode 20.4 W is separate.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Power use (max)
Not available
72W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own maximum brightness/contrast with maximum loading on all USB ports.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Power use SDR (EU label)
20.4W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own electrical On mode 20.4 W as defined in EU 2019/2021 and 2019/2013, separate from Energy Star Pon 17.18 W.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Power use HDR (EU label)
Not available
Standby power
0.3W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Off-mode power
0.2W2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 20266Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
EU energy class SDR
Not available
EU energy class HDR
Not available
Energy per 1000 h SDR
Not available
Energy per 1000 h HDR
Not available
Certifications
4 of 9 differ
VESA ClearMR
Not available
Not available
VESA AdaptiveSync Display
Not available
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.
Not available
Low blue light
Software2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own ComfortView preset decreases blue-light emission by software setting, not a claimed hardware solution.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
ENERGY STAR
Not available
Not available
TCO Certified
Not available
Not available
EPEAT
Not available
Not available
Colour certifications
Not available
Not available
Other certifications
Not available
In the box
2 of 2 differ
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.
Monitor, Stand riser, Stand base, I/O cover, Power cable (varies by country), DisplayPort to DisplayPort cable, HDMI cable, USB 3.0 upstream cable, Quick setup guide, Safety, Environmental, and Regulatory Information, Alienware welcome card2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Package Contents. Regional optional items and power cord can vary. No printed-item change from newer sibling manuals is transferred.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Cables included
AASUS ROG Strix XG27ACS
| Type |
|---|
| Power cord |
| DisplayPort cable |
BDell Alienware AW2521HF
| Type | Count |
|---|---|
| Power cable | 1 |
| DisplayPort to DisplayPort cable | 1 |
| HDMI cable | 1 |
| USB 3.0 upstream cable | 1 |
Source2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Own Package Contents explicitly pictures/lists one of each cable. Lengths are not inferred.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026
Warranty
1 of 2 differ
Manufacturer warranty (source market)
Not available
Dead pixel policy
Not available
Not available
Links
Not compared
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
www.dell.com/support/product-details/en-us/product/dell-aw2521hf-monitor/overview1Maker product pagedell.com/support/product-details/en-us/product/dell-aw2521hf-monitor/overviewRead 5 October 2026Current exact maker product support page. The original US retail product page now redirects to the accessories category.
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
Not available
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.
downloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdf2Owner's manualdownloads.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Original exact December 2020 A03 maker guide was downloaded and read. Later independent downloads.dell.com retrieval returned HTTP 403. The same exact edition is readable on the separately listed original dl.dell.com host.6Owner's manualdl.dell.com/manuals/all-products/esuprt_electronics_accessories/esuprt_electronics_accessories_monitors/dell-aw2521hf-monitor_User%27s-Guide_en-us.pdfRead 5 October 2026Readable original maker host for the exact A03 December 2020 guide. This is the same later edition, not the older edition with different weights.
Both are also in the API. Back to all monitors.