apc back-ups cs 350va tower ups usb only sb-10 output output power capacity 210 watts / 350 va max configurable power 210 watts / 350 va nominal output voltage 230v output connections (1) iec 320 c13 (surge protection) (3) iec 320 c13 (battery backup) input nominal input voltage 230v input frequency 50/60 hz +/- 3 hz (auto sensing) input connections iec-320-c14 inlet cord length 1.83 meters