Belkin Office Series 750VA UPS - 400 Watts $79.99

The 750VA Office Series UPS offers protection for your computer against blackouts and brownouts. It features 4 battery backup outlets with surge protection and 2 surge only outlets.With a capacity of 400 watts this unit is geared towards entry-level computers and home electronics. The Office Series also features easy to replace batteries for extended product life, and Automatic Voltage Regulation for line conditioning.

Buy.com is carrying this 400 Watt UPS for $79.99