CyberPower ST425

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.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Shipping costs are calculated at checkout based on destination, total weight, and selected speed. Free shipping applies to carts over $100 (excluding heavyweight items). All available options and final pricing are clearly shown before payment so you can choose the service that best fits your needs.

Deliveries are handled by major carriers such as USPS, UPS, and FedEx. Estimated delivery times are displayed at checkout and may vary depending on service level and location. Please note that these are estimates and can be affected by weather, holidays, or carrier volume. Once your order ships, you’ll receive a tracking number for real-time updates from pickup to final delivery.

Providing an accurate shipping address helps prevent delays, and changes may be limited once the order has been dispatched. P.O. boxes are supported only when permitted by the selected carrier. Packaging and handoff are optimized to protect items during transit, though oversized or high-weight products may require special handling. All shipping methods and any related constraints are clearly shown during checkout.

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Returns are accepted within 30 days of delivery. Items must be unused, in the same condition received, with tags, manuals, accessories, and original, unaltered packaging. Any item kept will be deducted from the refund. Start a return by sending us an email. Items sent back without approval may be refused or returned to the sender.

Some items are not returnable: opened TVs/combos/monitors 37″+, opened computers or software, electronic downloads, opened consumables (film, paper, bulbs, media, ink), custom or modified computers, special-order or “nonreturnable” items, submerged underwater gear, and opened educational media.

After inspection, refunds are issued to the original payment method; allow 5–7 business days for the credit to post. Shipping, handling, customs duties, and import taxes are nonrefundable. If an item is used, incomplete, or not in original condition, a 30% restocking fee may apply. Direct exchanges are not offered; purchase the replacement and return the original for a refund.

We act solely as a reseller. Any product warranty is provided and administered by the manufacturer, not by our store. That means eligibility, coverage, and outcomes are determined by the manufacturer’s policy for each brand and model. Before purchasing, we recommend reviewing the warranty terms on the manufacturer’s website or in the product documentation to confirm what is covered and for how long.

If you need warranty service, please file the claim directly with the manufacturer. They may require proof of purchase, the product serial number, original packaging, photos, or basic troubleshooting. Some brands ask you to register the product or obtain a case number before shipping it for repair or replacement. We don’t submit or approve claims, but we can point you to the correct support links and contact details.

Keep your invoice and packaging in a safe place, and report any functional issues to the manufacturer as soon as they appear. If you’re unsure whether a problem is covered, the manufacturer’s support team can confirm next steps and timelines. While we cannot intervene in decisions or outcomes, we’re happy to provide purchase documentation or guidance so you can move through the warranty process smoothly.

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