Interface 1x USB 2.0 Type B Port , 1x Serial RS-232 ( DB-9) Port Softwares APC PowerChute Smart-UPS Bundle Input Power Voltage 160 - 286 Vac Output Power Capacity 1000VA / 670W Output Power Voltage 230Vac Response time meets UL 1449 Dimensions ( 170 x 216 x 439 mm) WHD Surge energy rating 320 Joules Weight 18.86 kg From Factor Mini Tower Filtering 0.3% IEEE surge let-through : zero clamping Respon Time meets UL 1449 Back-Up Time Half Load 20.6 minutes ( 335 Watts) Back-Up Time Full Load 6.1 minutes ( 670 Watts) Battery RBC6 Maintenance-free sealed Lead-Acid battery Surge Energy Filtring Full time multi-pole noise Warranty 2-years Limited Warranty by Authorized Distributor