CyberPower ST425 8-Outlet Standby UPS

Overview

The CyberPower ST425 is a standby uninterruptible power supply designed to keep your essential electronics running during power interruptions. It provides battery backup and surge protection to safeguard devices like desktop computers, networking equipment, and streaming devices from sudden outages and voltage spikes. With a 260-watt output capacity and an 890-joule surge rating, it offers reliable protection and enough runtime to save your work and shut down safely.

Key features

• Eight total outlets with a split configuration: four provide battery backup and surge protection, while four offer surge protection only for non-critical devices.
• Surge protection rated at 890 joules to defend connected equipment against voltage spikes and power surges.
• Battery backup runtime of approximately 1.5 minutes at full load, allowing sufficient time to save files and power down properly.
• Front-panel LED indicators that clearly display power status and battery conditions for easy monitoring.
• Audible alarms that alert you when the battery is active or running low, ensuring you stay informed during outages.
• Compact design that fits conveniently under desks, on shelves, or near media centers, making it suitable for small spaces like apartments, dorm rooms, and offices.
• Battery recharge time of about eight hours to quickly restore full backup capacity after an outage.

Key specs

• Output capacity: 260 watts
• Surge protection rating: 890 joules
• Number of outlets: 8 (4 with battery backup and surge protection, 4 with surge protection only)
• Runtime at full load: approximately 1.5 minutes
• Battery recharge time: approximately 8 hours
• Outlet type: NEMA 5-15R

Connectivity and compatibility

The ST425’s eight NEMA 5-15R outlets accommodate a variety of common electronics and peripherals. The division between battery-backed and surge-only outlets allows you to prioritize critical devices like computers and modems while still protecting less essential equipment such as printers or lamps. This setup works well in home offices, small business environments, and entertainment setups where a mix of devices requires different levels of power protection.

Ideal uses and environments

This UPS is well suited to users who need a straightforward, space-efficient solution to protect their electronics from power interruptions and surges. It fits naturally in small offices, dorm rooms, and apartments where space is limited but reliable power backup is important. The ST425 is a strong choice for anyone looking to prevent data loss and hardware damage during brief outages without investing in a larger, more complex system.