Tripp Lite UPS Smart 500VA 300W Rackmount AVR 120V USB DB9 SNMP 1URM - SMART500RT1U - -
SCHNEIDER BVS500I-GR 500VA/300W 230V UPS ~ Red Line Store
Amazon.com: Liebert PSA5 UPS - 500VA/300W 120V, Line Interactive, AVR, Mini Tower, 10 outlets, USB Charging, 3 Year Warranty, Uninterruptible Power Supply, Battery Backup With Surge Protection (PSA5-500MT120) : Electronics