... tower in universal body,2U height,LED or LCD Application : 19 rack device, computer room, data center, point-of-sale, router, hub ... USB or Dry contacts (optional)External battery bank (optional) Name rack UPS, power backupModelKR1000-J/ KR1000L-JKR2000-J/ KR2000L-JKR3000-J ... /long backup14/710+22/1211+28/1318+48/1819+48/19 Online high frequency rack UPS(1KVA-10KVA)