3com PSU 48V AC f Njack. Output voltage: 48 V, AC adapter output voltage: 110 V. Certification: Canada: ICES-003 Class A; Japan: VCCI Class A; U.S.: FCC Class A, CSA, C-Tick, NOM. Cables included: Power cord. Dimensions (WxDxH): 88.9 x 50.8 x 38.1 mm