Product Features:

• 78 keys Standard PC-Keyboard -Windows Keys included. 
• Built-in 14mm optical trackball with 2 standard mouse buttons
• Excellent tactile key stroke attached White Large Print with UV coating.
• High quality rubber membrane key switches.
• Durable for industrial user
• Perfect for POS and Rack Mount users
• USB and PS2 interface available

Specifications:

• Designed to work with IBM PC compatible 
• Compatible OS: Windows XP, Vista, Windows 7
• Operating temperature : 0℃ to 50℃.
• Operating humidity : 10% to 85%
• Supply voltage : 5 V±5%
• Current consumption : Max 40 mA
• Switch : 5,000,000 life cycles
• FCC, CE, ESD and BSMI certification

System Requirements: 

• IBM or compatible PC
• Windows XP, Vista, Windows 7 

Keyboard Dimension: 

• Keyboard: 9.1"(L) x 6.3"(W) x 0.67"(H) inch