HP 2311x
tbdCOR ScoreAvailable after 3 critic reviews
Monitors
HP Compaq LA2405x reviews
Product specifications and review coverage for this exact model.
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Product overview
HP A9P21AT is listed in the computer monitors category. The recorded specifications include display diagonal: 61 cm (24"); display resolution: 1920 x 1200 pixels. This entry covers manufacturer code A9P21AT. 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.
Expert reviews
No scored critic reviews have been imported for this exact product yet. It remains unrated.
The COR Score gives each publisher one rating. Scores are converted to the same five-point scale.
Specifications
Manufacturer code: A9P21AT. Icecat product 14574110 · Checked 26 Sep 2026. The source lists this code for Great Britain. No specifications are transferred from other editions.
Key specifications
The main features to compare for this exact model. Missing details are not assumed.
| Screen size | 61 cm (24") |
|---|---|
| Screen resolution | 1920 x 1200 pixels |
| Response time | 5 ms |
| Display brightness (typical) | 250 cd/m² |
| DisplayPort connections | 1 |
More product specifications
Open a section for the details that matter to you.
Audio & listening1 detail
| Built-in speakers | No |
|---|
Display7 details
| Touchscreen | No |
|---|---|
| Contrast ratio (typical) | 1000:1 |
| Contrast ratio (dynamic) | 3000000:1 |
| Viewing angle, horizontal | 170° |
| Viewing angle, vertical | 160° |
| Display number of colours | 16.78 million colours |
| Active display area (W x H) | 518.4 x 324 mm |
Processor, memory & storage2 details
| Supported graphics resolutions | 1280 x 960, 1024 x 768 (XGA), 1280 x 1024 (SXGA), 1440 x 900 (WXGA+), 1600 x 1200 (UXGA), 1680 x 1050 (WSXGA+), 1920 x 1080 (HD 1080), 1920 x 1200 (WUXGA), 640 x 480 (VGA), 800 x 600 (SVGA) |
|---|---|
| Storage relative humidity (H-H) | 5 - 95% |
Camera, image & video1 detail
| Built-in camera | No |
|---|
Printing, scanning & paper2 details
| Horizontal scan range | 24 - 76 kHz |
|---|---|
| Vertical scan range | 50 - 63 Hz |
Connections & wireless5 details
| USB hub version | 2.0 |
|---|---|
| USB Type-A downstream ports quantity | 3 |
| VGA (D-Sub) ports quantity | 1 |
| DVI-D ports quantity | 1 |
| Panel mounting interface | 100 x 100 mm |
Power & battery6 details
| Power consumption (typical) | 29 W |
|---|---|
| Power consumption (standby) | 0.5 W |
| Power consumption (off) | 0.5 W |
| AC input voltage | 96 - 264 V |
| AC input frequency | 50 - 60 Hz |
| Supplied AC adapter type | LCD |
Controls & features1 detail
| Operating temperature (T-T) | 5 - 35 °C |
|---|
Design & dimensions10 details
| VESA mounting | Yes |
|---|---|
| Height adjustment | Yes |
| Adjustable height (max) | 12 cm |
| Width (with stand) | 556.8 mm |
| Depth (with stand) | 278.4 mm |
| Height (with stand) | 487.5 mm |
| Width (without stand) | 556.8 mm |
| Depth (without stand) | 64 mm |
| Height (without stand) | 362.6 mm |
| Weight (without stand) | 6.8 kg |
Further product details21 details
| HD type | Full HD |
|---|---|
| Native aspect ratio | 16:10 |
| Aspect ratio | 16:10 |
| Pixel pitch | 0.270 x 0.270 mm |
| Viewable size, horizontal | 51.8 cm |
| Viewable size, vertical | 32.4 cm |
| 3D | No |
| HDCP | Yes |
| Cable lock slot | Yes |
| Cable lock slot type | Kensington |
| Pivot | Yes |
| Pivot angle | 0 - 90° |
| Swivel angle range | -170 - 170° |
| Tilt angle range | -5 - 30° |
| Plug and Play | Yes |
| LED indicators | Power |
| Operating relative humidity (H-H) | 20 - 80% |
| Operating altitude | 0 - 5000 m |
| Sustainability certificates | EPEAT Gold, ENERGY STAR |
| TV tuner integrated | No |
| Thin client installed | No |
Packaging & supplied accessories1 detail
| 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.
