Pros: VERY aggressively priced, and surprisingly good quality for the price level. 4 batteries, lots of power.

Cons: Heat considerations

Overall Review: I have over a dozen of these in a rack, and they do a marvelous job. They have four batteries, and the batteries are replaceable without unmounting the UPS. If they are mounted right on top of each other, they get VERY warm, which isn't good for your batteries. (The fan only runs when actually inverting, not during standby) With a small gap between them, they stay at a much more reasonable temperature.

Comments: Having used more expensive UPS to power my 6 servers (2 dual xeon, 4 p4 servers) at work was adding up. The batteries cost more than this unit by themselves. I finally bit the bullet and ordered two of thise. Originally I was going to only power one server with each UPS, however I quickly found out that I can power all six servers with just these two battery backups with more than 15 minutes to safely shutdown the case of a power outage. I love this product!

Pros: This is a very nice product i was having problems with the electricity in my building and kept blowing power supplies. bought this product and have not had any kind of problem at all. its nice when you are on the internet and mention the power went out and you can keep chatting.

Cons: someone else mentioned that it is very heavy and they are right but that is bout the only bad thing i can think of

Overall Review: mine has lasted for aprox. 2 hours with a monitor and comp. plugged into it and some logitech speakers and sub for some music once when the power went out is deff worth the money if you have those same kinda problems

Pros: Rack mountable, sturdy/durable

Cons: Didn't like my generator very much.

Overall Review: Has been running dutifully since spring 2009. The fans started coming on even when the unit was on line power indicating the batteries were starting to go. After replacing the batteries the unit is quiet again.

Pros: I ordered two of these ... two small servers are running on each one. For the price they can't be beat in my mind. Very Satisfied.

Cons: none

Pros: The product is good and solid, and does the job.

Cons: The packing is bad. The product is heavy about 70lb. The carton box should be much stronger than it is. The product can be damaged during shipment.

Pros: Solid, reliable, long life. Bought 2, one for server, one for 25 extension phone system, router, bridges and internet device. Both have maintained power for as long as 1.5 hours.

Cons: None

Overall Review: Ignore posters about rack-mounting issues. It is well engineered and rock-solid mounted in our rack.

Pros: These do exactly what they should, and work well. Batteries replaceable without taking the unit out of a rack.

Cons: Fit and finish not always the best

Overall Review: For the price, these are terrific. I have almost twenty of these, and have not been let down in outtages, voltage dips, or monthly testing.