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In Battery Backup (UPS)

Easy to use Easy setup Works great

-setup was easy -works great -price

Great product. I forget it's there until the power goes out, and it gives me more than enough time to shut everything off. Been using it for a few years now and the batteries are still good. Better than the AP* brand we use at work.

Great product. Seamless switch to battery. Quality of APC for homeowners needing low watt demand. DO IT its worth it!!!! *** I have more UPCs in a commercial environment than I know what to do with.......this is in my personal residence, I know what a good UPC is.

I'm in IT and have purchased 50-60 of these units in the last 3 years with no problems. No DOA's and non have failed yet. I find that 550VA is great for single workstations like Core2Duo with duel 19" LCD's.

Length: it's shorter than others so it will mount fine in 2 post racks using included heavy-duty mounting brackets. Price: excellent value for your dollar. Tons of features you would not expect for a device under $1000. Quiet: does not make a horrible racket like other UPS in its class. Just a periodic chirp and light fan sound. Powerful: 20A means you can put more load on it and it will charge faster.

Easy to view screen is very helpful.

See nearby/previous review with same title.

Great unit, every so often i get bored and unplug it just so it can switch to battery power and it has done the job well. I have never seen how long it takes to fail but soon I probably will.

Seems to be good quality. Haven't had a chance to fully use it yet.

I love this device! I have mine set up to shut down 5 minutes after the power goes out, then I can use the remaining battery life to power LED lamps in my house. It tells you how much power is left on a easy to read LED display on the front. The software that comes with it is absolutely awesome. You input your cost of kWh into it and it calculates your power cost from what is plugged into the backup. It also tells you total energy used, any power surges or dips, blackouts, etc. If you have dirty or unstable power, this is a must-have.

1U and Rackmount - The battery fits perfectly in a 1U slot on my rack, and is narrow enough to work with most rails. The handles can be optionally attached if you need an extra 1/4-1/2" of thickness depending on your rail kit, allowing it to be compatible with even more kits. Front Panel LED is easy to read, not too cluttered with useless icons. The uncovered button changes the info displayed, cycling between Input Voltage, Output Voltage, Battery Run Time (Minutes), Load Capacity (in %), and Battery Capacity (in %). 6 outlets on the back panel: 4 battery/surge and 2 surge-only. There are additional ports (USB, serial, RJ-11/45), but I didn't use those, so not sure how well they work.

- Unit is very reliable - Clean power - Fast switching protection when power drops - Onscreen info without software

- Price - Availability

Pros: * form factor allows under table mounting of UPS with great access to outlets and on/off switch * the CPS USB controls available via USB interface works with many devices out of the box without additional software * wide variety of Windows/MacOS/Linux hosts supported, most commercial NAS devices (QNAP, Synology), even a Raspberry Pi 3 or 4!