Universal AC input voltage 100V-240V, the desktop power adapter is one 84W single DC output 24Volt constant voltage class 2 solution and accept three AC inlet versions of IEC320-C8(Class II power), IEC320-C14 and IEC320-C6(Class I power) for choose, the 24v dc power supply is certified UL/cUL 1310 FCC international safety standards.