Specifications
General Information
Total USB-C Ports: 0
Total DVI Inputs: 1
Energy Star Compliant: YES
Total 3D Glasses Included: 0
Model Number: S231D
Monitor Display Type: LED-backlit
Curved Display?: NO
Maximum Resolution (Width x Height): 1920 x 1080
Total Component Inputs: 6
Built-in Speakers: YES
HDCP Compatible: NO
Total HDMI Inputs: 0
Adaptive Sync Technology: Not Applicable
Has Microphone?: Yes
Total VGA Inputs: 1
Total Thunderbolt Ports: 0
Total Composite Inputs: 5
Finish Type: Matte/Flat
3D Technology: NO
Webcam Megapixels (0 if none): 2.1
Aspect Ratio: 16:9
Total DisplayPort Inputs: 1

Optical
Vertical Viewing Angle (°): 178
Brightness (cd/m²): 250
Contrast Ratio (X:Y): 1000:1
Response Time (ms): 6
Horizontal Viewing Angle (°): 178

Display
Display Colors: 8-bit
Pixel Pitch (mm): 0.256
Touch Screen: NO
Screen Size (IN): 23
Screen Refresh Rate (Hz): 60

Physical Features
Item Dimensions (H x W x D Inches): 21.4 x 18.5 x 9.5
VESA Compatability: Not Applicable
Item Weight (LBS): 8.5
Stand Adjustments: Height, Pivot, Swivel, Tilt
Color (Generic): Black

Connectivity 
Total USB 2.0 Ports: 2
Total USB 3.0 Ports: 3