APC BE650G1 Back-UPS 650 VA Power Supply (UPS) - Newegg.com
APC Back-UPS 500 - 6ft, AC 120V, 50/60Hz, 300 Watts, 500VA, 480 Joules, Hot-swappable, LED Status Display, 6x NEMA 5-15R, USB, Black - BK500BLK at TigerDirect.com
APC Back-UPS 650VA International Version (230V) BK650EI B&H