Logitech K120. Device interface: USB, Purpose: PC, Recommended usage: Office. Cable length: 1.5 m. Keyboard dimensions (WxDxH): 450 x 155 x 23.5 mm, Keyboard weight: 550 g. Certification: CE, TUV, WEEE, FCC, UL/cUL, VCCI, BSMI, EPUP, KCC. Minimum system requirements: USB, Compatible operating systems: Windows XP, Vista, 7 Linux 2.6+