Keep devices backed up and protected with the Back-UPS 850VA with 2 USB Charging Ports (120V) from APC. Featuring a NEMA 5-15P input connection and nine NEMA 5-15R outlets, the Back-UPS incorporates six backup and surge-protected outlets and three outlets with only surge protection. Two USB Type-A charging ports are also present. Delivering a load capacity of 850VA or 450W, this uninterruptible power supply features an input of 120 VAC at 50 to 60 Hz. Surge protection is rated at 354 Joules with a 15A clamp force.