B&B Electronics 485USBTB-2W. Operating temperature range (T-T): 0 - 70 °C, Storage temperature range (T-T): -40 - 85 °C, Operating relative humidity range: 0 - 95 %. Dimensions (WxDxH): 65 x 32 x 16 mm, Weight: 104.3 g. Input voltage: 5 V. Housing material: Plastic. Certification: FCC, CE