Microprocessor Controlled Line Interactive with Brownout & Overvoltage Protection Cable length 1.4m Backup time at half load 10 minutes Maximum current 4.5A1 x IEC C14 chassis power inlet 4 x IEC C14 chassis power outlet 1 x RJ-11 in out with surge protection USB Interface Microprocessor controlledbr Boost & buck AVR for voltage stabilizationbr Auto restart during AC recoverybr Charges while offbr 50 60 Hz auto sensingbr Overload discharge & overcharge protectionbr Cold startbr Sound alarmbr Spare fuse included in fuse traybr