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 Smart-UPS SRT3000RMXLT is a robust uninterruptible power supply designed for environments where high availability and flexibility are critical, like small data centers or network closets. It offers a strong power capacity of 3000 VA at 208 volts, which supports several devices simultaneously, helping keep essential equipment running during power interruptions. Smart-UPS models generally provide reliable backup time, enough for safe shutdown or short-term operation.

The UPS features multiple USB 2.0 ports for connectivity, which is convenient for monitoring and management. Its alloy steel build and larger dimensions indicate a rack-mountable form factor, suited for professional setups rather than casual home use. This model includes surge protection and automatic voltage regulation (AVR), safeguarding connected devices from voltage spikes and irregularities without needing a separate stabilizer. Weighing 69 pounds, it is a heavy-duty unit, reflecting its solid construction and capacity.

This unit's size and weight could limit placement options in smaller spaces. It is a dependable choice for business or IT professionals seeking scalable power protection with strong build quality and essential features like AVR and surge protection, but it may be more than needed for casual or light home use.