Allied Telesis AT-FS232. Dimensions (WxDxH): 105 x 95 x 25 mm. Power consumption (typical): 6 W. Operating temperature range (T-T): 0 - 40 °C, Storage temperature range (T-T): -20 - 80 °C, Operating relative humidity range: 5 - 95 %. Safety: UL-Cul,CSA/CSA, NRTL,TUV,CE. Compliance industry standards: FCC Class A