APC Easy-UPS Rack Mounting 2U SRV2000VA (SRV2KRI+SRVRK1), 2000VA/1600W, Double-conversion On-line UPS, 4 x IEC Sockets ( 4 IEC C13, all 4 Battery Backup + Surge Protected), Multifunction LCD Display, DB-9 RS-232, USB, with Rail Kit