APC Smart-UPS SRT SRT5KRMXLTUS - Essential Series - UPS (rack-mountable) - AC 208 V - 4250 Watt - 5000 VA - Ethernet 10/100, USB, serial - output connectors: 4 - 3U - 19" - black - TAA Compliant - for P/N: AR3103, AR3103SP, AR3106SP, AR3357X674, AR9300SP,