Linksys Compact USB 4-Port Hub. Data transfer rate: 12 Mbit/s. Weight: 140 g. Storage temperature range (T-T): -20 - 60 °C. Interface: USB, Management protocols: CSMA/CD, Dimensions (WxDxH): 64 x 53.86 x 27.22 mm. Minimum system requirements: USB, Compatible operating systems: Windows 98, 2000, ME, XP