CyberPower CP550SL 550VA 330Watts UPS - Retail

Comment:
A good basic UPS. Software is nicer than Opti-UPS, but not as comprehensive. Gives me about 3 minutes of backup. Decent size backup battery (700MAh)

Comment:
This is a good UPS option for those who need to put thier network components (switch, DSL router, etc) on a battery backup or who need to put external devices on a UPS to isolate them from unstable local power.

Comment:
My mother needed a UPS to protect her components when there is loss of power or power surge (which is quite often) so I waited for a good special... and I've purchased this. It does what it's supposed to do. Overall satisfactory.

Comment:
I needed a UPS to protect my components against sudden loss of power and surges, not to actually keep my system running when the power goes out. Since this UPS is actually rated rather low, it was perfect. This will not keep your system running for any considerable amount of time unless it's very low power!I have a overclocked Q6600, 4GB of RAM, a HD4850, Velociraptor, two optical drives and 5 fans and the software reports 8 minutes of runtime when running on batteries. The software works like a charm - I have it set to shut off the system after 1 minute on battery backup and it works (tested by unplugging).Got this unit on sale for $50 with free shipping via the $10 gift card.