Trendnet 4-Port Compact USB Hub. Data transfer rate: 12 Mbit/s. Operating temperature range (T-T): 0 - 45 °C, Storage temperature range (T-T): -20 - 70 °C, Operating relative humidity range: 0 - 90 %. Safety: FCC, CE. Cables included: USB. Interface: USB 1.1, Dimensions (WxDxH): 80 x 35 x 10 mm