The Altinex PS5594UB is a 4 output USB power distribution module which accepts input voltages ranging from 100-240V. A standard NEMA 1-15P 2 prong AC power cord is included with the module. It is included as a standard accessory with the TNP155 and TNP155STabletop Interconnect Boxes, but can also be purchased separately for use as a standalone module. The Altinex PS5594UB has multiple safety protection systems to ensure over-charging, over-heating and short circuit protection. It is safely tested -providing safe power and charging capability for users with devices such as smartphones, tablets, mp3 players, iPods, and iPads.