
HP 2311x
tbdCOR ScoreAvailable after 3 critic reviews
Monitors
Product specifications and review coverage for this exact model.

Image supplied through Icecat
HP NM274AT-RFB is listed in the computer monitors category. The recorded specifications include display diagonal: 55.9 cm (22"); display resolution: 1680 x 1050 pixels; panel type: TN. This entry covers manufacturer code NM274AT-RFB. Specifications relate to this exact source record; other editions or packages may differ.
Automatically assembled from the source specifications. This is a factual summary, not a hands-on review.
No scored critic reviews have been imported for this exact product yet. It remains unrated.
Specifications, review scores and prices belong to each exact model.
The COR Score gives each publisher one rating. Scores are converted to the same five-point scale.
Manufacturer code: NM274AT-RFB. Icecat product 28664949 · Checked 25 Sep 2026. The source lists this code for Great Britain. No specifications are transferred from other editions.
The main features to compare for this exact model. Missing details are not assumed.
| Screen size | 55.9 cm (22") |
|---|---|
| Screen resolution | 1680 x 1050 pixels |
| Panel type | TN |
| Response time | 5 ms |
| Display brightness (typical) | 250 cd/m² |
| DisplayPort connections | 1 |
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| Built-in speakers | No |
|---|
| Display technology | LED |
|---|---|
| Touchscreen | No |
| Contrast ratio (typical) | 1000:1 |
| Contrast ratio (dynamic) | 3000:1 |
| Viewing angle, horizontal | 160° |
| Viewing angle, vertical | 160° |
| Supported graphics resolutions | 640 x 480 (VGA), 720 x 400, 800 x 600 (SVGA), 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1280 x 960, 1440 x 900, 1600 x 1200 (UXGA), 1680 x 1050 (WSXGA+) |
|---|---|
| Storage temperature (T-T) | 20 - 60 °C |
| Storage relative humidity (H-H) | 5 - 95% |
| Built-in camera | No |
|---|
| Horizontal scan range | 24 - 83 kHz |
|---|---|
| Vertical scan range | 50 - 76 Hz |
| Built-in USB hub | Yes |
|---|---|
| USB hub version | 2.0 |
| USB Type-A downstream ports quantity | 2 |
| VGA (D-Sub) ports quantity | 1 |
| DVI port | No |
| DVI-D ports quantity | 1 |
| Panel mounting interface | 100 x 100 mm |
| Power consumption (typical) | 25 W |
|---|---|
| Power consumption (standby) | 1 W |
| Power consumption (max) | 35 W |
| AC input voltage | 100 - 240 V |
| AC input frequency | 50 - 60 Hz |
| Supplied AC adapter type | LCD |
| Operating temperature (T-T) | 5 - 35 °C |
|---|
| Product colour | Silver |
|---|---|
| VESA mounting | Yes |
| Height adjustment | Yes |
| Adjustable height (max) | 12 cm |
| Width (with stand) | 511 mm |
| Depth (with stand) | 254 mm |
| Height (with stand) | 452 mm |
| Width (without stand) | 511 mm |
| Depth (without stand) | 62 mm |
| Height (without stand) | 333 mm |
| Weight (without stand) | 6.8 kg |
| Dimensions (W x D x H) (imperial) | 511.3 x 255 x 373.4 mm (20.1 x 10 x 14.7") |
| Weight (imperial) | 6.82 kg (15 lbs) |
| Certification | TCO 5.0 Displays, ISO 9241-3xx, CISPR Requirements, VCCI Approvals, KC and KCC (Korean) Certification, CSA 60950-1, UL 60950-1, EN55022 Class B, CNS 13438 Class B, IEC 60950-1, China Energy Label (CEL) Grade 1, China MEPS, Korea MEPS Energy Boy, SmartWay (NA only), EUP Lot 6 Tier 1, AS/NZS 3548 Class B Approval, “GS” Mark, TUV Approvals, GEEA, CE Marking, FCC Part 15 class B Approval, ENERGY STAR qualified, EN55024 Class B, EN60950 -1, CUL, CCIB, CCEE, IT ECO (EDS), EPEAT Gold (select region |
|---|
| Native aspect ratio | 16:10 |
|---|---|
| Pixel pitch | 0.282 x 0.282 mm |
| 3D | No |
| Market positioning | Business |
| HDCP | Yes |
| Cable lock slot | Yes |
| Cable lock slot type | Kensington |
| Pivot | Yes |
| Pivot angle | 0 - 90° |
| Swivelling | Yes |
| Swivel angle range | -170 - 170° |
| Tilt adjustment | Yes |
| Tilt angle range | -5 - 35° |
| Plug and Play | Yes |
| Operating relative humidity (H-H) | 20 - 80% |
| TV tuner integrated | No |
| Thin client installed | No |
| Package width | 591 mm |
|---|---|
| Package depth | 231 mm |
| Package height | 492 mm |
| Package weight | 11.3 kg |
| Country of origin | China |
Specifications describe the supplied product data, not measured review results. Battery life, range and performance figures are source claims and can vary with use.
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