Ultron UMT-400US. Device interface: USB, Purpose: PC, Recommended usage: Office. Cable length: 1.8 m. Keyboard dimensions (WxDxH): 452 x 152 x 22 mm, Keyboard weight: 528 g. Package dimensions (WxDxH): 470 x 170 x 29 mm, Package weight: 680 g, Packaging type: Box