10 Best Computer Ups 2025 in the United States

The Liebert GXT4 UPS offers substantial power capacity with 10000VA and 9000W, making it suitable for high-demand environments. Its online double-conversion technology ensures consistent power quality without relying heavily on the battery, which helps prolong battery life. The UPS supports both 208V and 120V outputs, adding versatility for different equipment types.

With integrated surge protection and Automatic Voltage Regulation (AVR), it provides robust defense against power disturbances, ensuring stable operation of connected devices. The inclusion of a network card enhances remote monitoring capabilities, allowing users to manage the UPS through applications like Trellis power insight or other platforms, which is a significant convenience for IT managers and professionals needing reliable oversight of their power systems. Form factor-wise, its rack mount/tower design offers flexibility in installation, accommodating various setups.

However, the unit's weight (213 pounds) and dimensions might make it challenging to handle and install without proper equipment and assistance. The hot-swappable batteries provide around five minutes of backup at full load, which is relatively short but can be extended with additional external battery cabinets if needed. This feature ensures that critical equipment remains operational during short outages. The Liebert GXT4 UPS is a powerful and versatile option for environments with significant power protection needs, but users should be prepared for its substantial size and weight when planning installation.

The APC Smart-UPS SRT 5000VA RM is a powerful uninterruptible power supply designed for critical equipment that requires reliable backup power. It offers a strong load capacity of 5000 VA/4250 W, supporting multiple devices or servers with high power demands. The UPS operates at 208V for both input and output, suitable for data centers or professional environments using this voltage standard.

Its rack-mountable 3U form factor allows it to fit neatly into standard server racks, saving space and keeping setups organized. The unit includes four outlets (two NEMA L6-20R and two NEMA L6-30R), providing flexibility for different types of power plugs commonly used in commercial settings. It also features automatic voltage regulation (AVR), which helps protect connected devices from voltage fluctuations without switching to battery power unnecessarily. Battery recharge time is about 1.5 hours, ensuring the UPS can be ready for the next outage sooner. The sealed lead acid battery is reliable but can be heavier and require eventual replacement compared to newer battery types. At about 123 pounds, it is quite heavy and will need secure mounting.

Surge protection is included, helping to shield devices from power spikes. The UPS is certified for environmental standards like RoHS and Energy Star, indicating energy efficiency and lower environmental impact. This UPS is ideal for businesses or IT professionals who need robust, rack-mounted power backup with good surge protection and voltage regulation, though it may be less practical for casual or light use due to its size and capacity.

The APC SMTL1000RM2UCNC is a solid choice if you're looking for a reliable UPS to protect your computer or small server setup. It offers 1000VA (800W) power capacity, which is suitable for most home offices or small business equipment. Its lithium-ion batteries provide longer life and lighter weight compared to traditional UPS models, making it easier to handle despite its 46-pound weight. The unit features six battery-backed outlets, which lets you keep multiple devices running during a power outage. It uses a pure sine wave output, which is great for sensitive electronics, ensuring stable and clean power.

The form factor is a 2U rackmount design, so it fits well in standard server racks or compact spaces. You also get advanced features like automatic voltage regulation (AVR) to protect against voltage dips and surges without draining the battery. Speaking of protection, the UPS includes built-in surge protection to safeguard your gear from sudden spikes. The built-in LCD panel provides easy-to-understand status updates, and the SmartConnect feature allows remote monitoring through a secure online portal, including alerts and firmware updates, which is handy for managing your UPS without needing to be physically present.

The price and 5-year warranty support add confidence that this APC unit is built to last. If you want a UPS that combines modern battery tech, remote monitoring, and reliable power conditioning in a compact rackmount design, this model fits those needs well.