Winner Pro Plus is the high density version of Winner Pro series of duble-conversion onnline UPS with a output power factor 0.9. It's designed in small cabinet with microprocessor controller. Winner Pro Plus also have USB and RS-232 communication ports as standard, with a built-in intelligent slot for additional adapters, protocol converters and relate contact cards. Rack Tower/Rackmount is also available for an alternative form factor and more information can be found in downloads.