These have been holding up over the years nicely. Only setback is when the power goes out for an extended period of time, these do not power back up on their own. If you use this on a simple home network, and have a concern with a power outage while you are on vacation, this unit is not ideal. Read more

CyberPower ST425 Standby UPS System. I got tired of resetting modem and routers each time the power surged or went out for a few seconds. This UPS fit right into the media wall box, simple to use with outlets staggered and flipped positions. In the first week it got its first power outage and performed seamlessly. I don't know how long it could have run with this low load, this time it was only a few minutes. I could just unplug it and see, but, nah, I ain't doing that! Well packaged, easy to set up, reasonable price, fast shipping, good seller! Read more

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. Read more

I am very pleased with this UPS for power backup and surge protection of my home network system. Setup is "plug and play". Just let the UPS battery charge for about 8 hours before it can provide UPS support for your home network devices. Some of the product reviews write about the alarm sounding too much, but that simply has not happened to me and the manufacturer clearly notes on the UPS that the power outlet needs to be grounded. If this UPS is plugged into an ungrounded outlet this will cause power spikes in the AC electric flow and the UPS will sound its alarm because that is exactly what it's designed and supposed to do. If the alarm sounds, it means you are either running on UPS battery power due to a loss of main power, or there was a power surge or spike in the AC electric flow. A great feature about this UPS is that it is the slimmest I could find and it has a very compact form factor that fits perfectly inside my network utility box. I am very pleased with this UPS to provide emergency power to my network devices and I do highly recommend this brand and product. Read more

Reasonable cost and functional. Has installed a power monitor but when the power went out, so did the Internet and the power off measuring was never received. I use this to keep the modem and router online during a power outage, for a brief while anyway. Does what it said it would. Can't speak to how long the battery lasts with this load, nor longevity of the unit. Read more

Pleased with it. Easy to install. Read more

Has worked great go over a year in tandem with my solar system backup. I work from home and this keeps the random power outages at bay. Read more

This has worked for a few years to maintain a UV light on our water purification system. Served us well until we sold the house and if you don't need a ton of power in a UPS this is the one to buy. Read more

I worked for 40 years in electronics. Cyber Power works quite well. The batteries in them last 3+ years, and they are cheaper than other uninterruptible units. However, Cyber generally lacks features that are common in APC power supplies. (I noticed they are changing and copying popular APC features and holding their prices lower). When Power supplies function well, I like to swap aging batteries for fresh ones. With APC, I had no problems finding the dimensions of their batteries and ordering them. I have some APCs operating for 16+ years, which I consider legendary. Legendary costs more. CyberPower sells for less. I use one 425W to maintain power interruptions from my internet. Light loads are handled well, but my main Peave with CyberPower are two things. 1. "No user installable batteries for the 425." (let me be the judge of that.) That is bull-puppy! The battery dimensions cannot be referenced in their 425 Watt. 2. CyberPower batteries and shipping cost more than buying a new unit. I hate to pitch a functional product in the junk because the battery lived to a ripe old age or faded away. All batteries should be easily located by dimensional searches. (They are not.) I have spent hours wasting away when a battery does the same thing regardless of how you shape it.. Read more

We like these and keep buying them as the old APC ones die off. They are of good quality and last a long time before needing replacing. The plugs are conveniently placed so the plugs with transformers on the ends fit too. a Easy to plug in and use immediately, even though it needs to charge the battery, it'll still work (as long as the power doesnt' go out in the first 8 hours!) Read more

So easy to use and very effective Read more

This has been working great for a number of months. In the country we have many power outages and brownouts. This has been used to save some smaller electronics and has worked great. Read more

The CyberPower 425 VA UPS proves itself as an efficient, reliable, and quiet solution for power protection, suitable for a wide array of devices including Wi-Fi gateways, Macbook Air, QNAP, and even TVs and streaming boxes. The compact size and straightforward setup make it a versatile UPS for any home or small office. With sufficient outlets - four featuring both surge protection and battery backup, and four more with just surge protection - this unit can accommodate a variety of devices. In terms of performance, the CyberPower 425 VA UPS stands out. It responds promptly to power interruptions, ensuring that devices remain powered on and protected. The unit delivers around 90 minutes of power for light loads like a Wi-Fi gateway, invaluable during extended power outages. For heavier loads, such as a Macbook Air or QNAP, it ensures a solid 10 minutes for a safe shutdown, which meets my expectations perfectly. One of the highlights of this unit is its quiet operation. Even under heavy load and during charging, it maintains a low noise level. Furthermore, I haven't experienced any issues with overheating during prolonged usage, testifying to its overall reliability. Lastly, I assume that the power efficiency of the CyberPower 425 VA UPS is adequate, as there have been no noticeable increases in energy consumption since its implementation. Additionally, I have not needed to contact customer service, indicating that the device works well and lives up to its promises. In conclusion, the CyberPower 425 VA UPS is a top-tier choice for anyone seeking a dependable, compact, and quiet UPS for their essential devices. Whether you're dealing with frequent power interruptions or simply want to safeguard your devices from power anomalies, this UPS comes highly recommended. With its stellar performance and reliable operation, I give it a well-deserved 5-star rating. Read more