CyberPowerST900U Standby UPS System, 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, Black

I have this connected to my fiber optic modem and internet router. I tested it and had both of them running for over an hour and didn't even get to the point where it was running low on power. You also can turn off the beeping if you use the cable that comes in the package so at least you can use your phone to surf the internet. I even bought one for an LED TV so I can watch TV as modern TVs don't just that much power. I should have bought one sooner.Just be aware that some outlets on the unit are only 'surge protected' and some allow for them to be powered. This is nice so you can exclude other devices from using power in an outage that don't need them. All outlets on it though do power from surges which is great.

The electricity went out very briefly a moment ago. It’s the first chance I’ve had to see if it does work. And it absolutely does. I have a Mac Mini M4, 6 external desktop drives, and a monitor on the UPS side of the device.When the electricity failed, the unit gave a single beep, alerting me and giving me time to turn on the monitor and begin shutting down. Luckily it all came back on before that was necessary. But it would absolutely would have allowed for that much time.It’s affordable and well made by a solid company! I’m going to get a couple more for another cluster of computers.

Power loss and surges, I use on the desktop computer and living room TV. The price is reasonable and there is no setup. Just plug into an electrical outlet and then plug the computer, TV, etc. into the four-battery supported and surge protected outlets. The other four outlets are only surge protected. Standard charge time is eight hours for the battery to be fully operational. Can watch TV or use the computer until the battery is drained if you choose to do so. Works well and have been using for many, many years.

Excellent product, keeps my electronics running through power surges and outages! I've noticed though that it does not like when I run two consoles at once, guessing it can't handle the power load. I was playing on my Xbox one and had to boot up my PS5 real quick, and the UPS started making these long beeps, different than the noise it makes when it loses power. I lost my guide though so I'm assuming it's letting me know I'm using more power than it can handle? It stopped after I shut my PS5 off.

I recently purchased the CyberPower ST425 Standby UPS System, and it's exactly what I needed for protecting my electronics.This compact unit offers 425VA/260W of backup power, which is perfect for keeping my essential devices running during short power outages or preventing data loss from unexpected surges. With 8 outlets, I have plenty of space to plug in my computer, monitor, modem, and other peripherals.The compact size is a major plus – it fits neatly under my desk without taking up much space. The black finish is also sleek and blends in well.Setup was incredibly easy; I just plugged it in and connected my devices. It provides peace of mind knowing that my equipment is protected from power fluctuations and that I'll have a few minutes of backup power to save my work and shut down properly during an outage.For anyone looking for an affordable, reliable, and compact UPS to protect their valuable electronics, the CyberPower ST425 is an excellent choice. It's a great value for the features it provides.

Solid backup at a reasonable price. It is essential to prepare for summer storms, as power outages can be particularly hard on your electronic equipment. I have my modem and laptop connected, and when the power goes out, all my equipment remains on and protected.

I bought this UPS unit to supply electricity to my powered recliner in the event of a power failure. I experienced such a power failure a couple of years while i was sitting in the chair in a partially reclined position. Since the footrest was automatically extended, I had no easy way to get out of the chair by myself (my wife helped pull me out). I should have bought this UPS then, but I put it off. A few weeks ago, I was forced to take action. I was sleeping in the recliner for a couple weeks due to back injury when we got a warning about an ice storm headed our way the next day. I wasted no time in placing the order for this unit and Amazon responded by getting it to me the next day. After fully charging the battery, I tested it by unplugging the UPS from the wall and running the recliner up and down while no one was in it. That worked fine, so I got in and did full recline followed by full upright, which also went off without a hitch. There is a tone that sounds every few seconds when the power goes out, which switches to several times per second when the battery is nearly depleted. This is the only way to know if it is time to stop using the UPS to power the recliner until the battery has been recharged. The UPS appears to have ample power to take care of the recliner for many days. Its relatively small footprint and discrete height helps it to remain fairly inconspicuous in our family room. It met my needs in full and I only wish I had bought it sooner.

The unit wouldn’t come on when plugged in. Found the reset button hiding in the back and now powered on waiting for a power outage.The slim design is perfect for my space. Bought this for my internet modem which is in wall box. We experience short outages which cuts out the internet. The unit fits perfectly and should stop the interruptions.