Technical Specifications: Key numbers: 105 & 4 hotkeys Input power: 5 Vdc, 100 m A Keyboard Dim: 435 (L) x 118 (W) x 15.5 (H) mm Switch activation mechanism: Membrane Travel Distance: 2.4 ± 0.15 mm Keyboard weight: 560g Interface: USB (Universal Serial Bus) Peak Force: 55 ± 10 g Agency Approval: FCC, CE, BSMI Environment Compliant: WEEE, Ro HS System Requirements: Windows 2000, Windows XP, Windows Vista & Windows 7 IBM PC compatibles Package Contents: 6310-U Wired Keyboard Quick Installation Guide