Features
The HP s2231a LCD monitor has the following features:

 

   *     1920 x 1080 factory-set resolution
   *     Supports DVI-D and VGA video input connectors
   *     Supports High-bandwidth Digital Content Protection (HDCP) to prevent transmission of non-encrypted high definition content
   *     Plug and Play capability, if supported by your computer system
   *     On-screen display (OSD) adjustments for ease of setup and screen optimization

 

Technical specifications
Display size  54.61 cm (21.5 inch) diagonal and viewable image

 

Panel active area (width x height): 47.66 cm x 26.81 cm (18.77 inches x 10.56 inches)
Display type  Liquid crystal display (LCD)
Input terminal  1 DVI-D connector, 1 VGA connector
Integrated speakers  1 watts per channel
Scanning frequency  Horizontal scan range 24-94 KHz

Vertical scan range 50-76 Hz
Viewing angle  Horizontal viewing angle: 170 degrees Vertical viewing angle: 160 degrees
Recommended resolution (H x V)  1920 x 1080 @ 60Hz (same as max and native)
Contrast ratio  Up to 1000:1
Dynamic contrast ratio  Up to 15,000:1 (typical)

NOTE:  Dynamic Contrast Ratios up to 15,000:1 during video playback only, depending on series of frames or time duration.
Response time  5 ms (typical)
Pixel pitch  0.245 mm (horizontal and veritcal)
HDCP (High-bandwidth Digital Content Protection)  Support for HDCP enables the monitor to display HDTV resolution if connected through the HDMI or DVI connector. A monitor without HDCP support, or connected through analog VGA, causes the displayed video to be downgraded in quality to a DVD-like resolution that is less than HDTV. HDCP is also a content protection system. HDCP prevents transmission of non-encrypted high definition content.
Power source - AC/DC adapter  Input rating: 100 to 240V~ frequency: 50~60Hz

Power consumption: 37 Watts max power consumption (35 Watts typical power consumption) , <1 Watt energy saving mode
Operating environment  

Temperature: 5 degrees C to 35 degrees C (41 degrees F to 95 degrees F)

Humidity: 20% RH through 80% RH (non-condensing)
Storage environment  

Temperature: -20 degrees C to 60 degrees C (-4 degrees F to 140 degrees F)

Humidity: 10% RH through 85%, 38.7 degrees C max wet-bulb RH (non-condensing)
Dimensions  

H x W x D (unpacked): 39.59 x 51.76 x 19.98 cm (15.59 x 20.38 x 7.87 inches)
Weight  Unpacked: 4.13 Kg (9.11 lbs)