APC Back-UPS 650 VA Desktop UPS - Tower - 1 Day Recharge - 3 Minute Stand-by - 120 V Input - 120 V AC Output - Single Phase - Stepped Approximated Sine Wave - USB - 4 x NEMA 5-15R, 4 x NEMA 5-15R Surge Receptacle(s) - 8 x Battery/Surge Outlet