Accuratus KYBAC540-USBBEI. Device interface: USB, Recommended usage: Office, Keyboard form factor: Mini. Scroll type: Touch. Keyboard dimensions (WxDxH): 227 x 289 x 27 mm, Keyboard weight: 720 g, Weight: 720 g. Power source type: USB. Depth: 289 mm, Height: 27 mm, Width: 227 mm