---
product_id: 83812286
title: "CyberPower ST900U Standby UPS System, 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, Black"
brand: "cyberpower"
price: "€ 295.33"
currency: EUR
in_stock: true
reviews_count: 12
category: "Cyber Power"
url: https://www.desertcart.fi/products/83812286-cyberpower-st900u-standby-ups-system-900va-500w-12-outlets-2
store_origin: FI
region: Finland
---

# 900VA/500W power capacity 2.1A dual USB charging ports 12 total outlets with 6 battery-backed CyberPower ST900U Standby UPS System, 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, Black

**Brand:** cyberpower
**Price:** € 295.33
**Availability:** ✅ In Stock

## Summary

> 🔋 Stay powered, stay productive — never miss a beat!

## Quick Answers

- **What is this?** CyberPower ST900U Standby UPS System, 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, Black by cyberpower
- **How much does it cost?** € 295.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/83812286-cyberpower-st900u-standby-ups-system-900va-500w-12-outlets-2)

## Best For

- cyberpower enthusiasts

## Why This Product

- Trusted cyberpower brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Plug & Protect:** 12 outlets including 6 with battery backup and 4 widely spaced for bulky plugs
- • **Fast Mobile Charging:** Dual USB ports deliver 2.1A shared output for quick device power-ups
- • **Power When It Counts:** 900VA/500W standby UPS ensures your devices stay online during outages
- • **Peace of Mind Guaranteed:** 3-year warranty plus $125,000 connected equipment protection
- • **Whisper-Quiet Efficiency:** GreenPower design minimizes noise and reduces energy consumption

## Overview

The CyberPower ST900U is a compact, high-efficiency standby UPS delivering 900VA/500W backup power with 12 outlets (6 battery-backed) and 2 USB charging ports. Designed for home office and entertainment setups, it safeguards electronics from surges and outages while offering quiet operation and energy savings. Backed by a 3-year warranty and $125,000 connected equipment guarantee, it’s the smart choice for uninterrupted productivity.

## Description

The CyberPower ST900U Uninterruptible power supply (UPS) system provides battery backup and surge protection for lightning-induced surges and other power events that can damage electronic equipment. This unit delivers enough battery backup to power connected electronics through utility power failure and enough runtime to perform a graceful shutdown to protect against the loss of data and damage to valuable electronics during longer outages. The ST900U has two USB charging ports with 2.1 amp shared total output which gives you a faster charging time. This unit is designed to minimize noise for a quieter work environment and to run efficiently to reduce power consumption. Including a sleek design, this UPS is perfect for all your home office and entertainment needs, including computers, gaming consoles, and Broadband routers. With a $125,000 lifetime connected equipment guarantee and a three-year warranty, you can trust CyberPower commitment to the quality of this battery backup with surge protection.

Review: Reliable Backup Power! Great Value in the CyberPower ST425 - 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.
Review: Awesome. - Just what I needed for the storms. Working great when the power goes out, on,out on during bad weather.

## Features

- 900VA/500W Standby Battery Backup Uninterruptible Power Supply (UPS) System uses simulated sine wave output to safeguard home office and entertainment needs, including computers, gaming consoles, and broadband routers
- 12 NEMA 5-15R OUTLETS: Six battery backup & surge protected outlets; Six surge protected outlets; Four outlets are widely spaced to accommodate larger plugs; INPUT: NEMA 5-15P plug with five foot cord
- 2 USB CHARGING PORTS: Share 2.1 amps to charge and power tablets, smartphones, MP3 players, and other mobile devices; LED STATUS LIGHTS: indicates Power-On and Wiring Fault
- GREENPOWER UPS HIGH EFFICIENCY DESIGN: Reduces power consumption by utilizing a compact charger and power inverter to create an ultra-efficient backup power system for home and office use
- 3-YEAR WARRANTY – INCLUDING THE BATTERY; $125,000 Connected Equipment Guarantee and FREE PowerPanel Personal Edition Management Software (Download)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GZT2QW7 |
| Batteries | 1 12V batteries required. (included) |
| Best Sellers Rank | #5 in Computer Uninterruptible Power Supply Units |
| Customer Reviews | 4.5 4.5 out of 5 stars (11,850) |
| Date First Available | August 15, 2018 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 7.7 pounds |
| Item model number | ST900U |
| Manufacturer | Cyber Power Systems (USA), Inc. |
| Product Dimensions | 7 x 12.2 x 3.1 inches |

## Product Details

- **Battery Cell Composition:** Sealed Lead Acid
- **Brand:** CyberPower
- **Color:** Black
- **Product Dimensions:** 7"D x 12.2"W x 3.1"H
- **Voltage:** 120

## Images

![CyberPower ST900U Standby UPS System, 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, Black - Image 1](https://m.media-amazon.com/images/I/619dWaTUrkL.jpg)

## Available Options

This product comes in different **Size, Style** options.

## Questions & Answers

**Q: How long will the UPS power my systems after the power goes out?**
A: Run times vary based on the power required by connected devices. This system is estimated run for 7.5 minutes at half load, 2 minutes for a full load.

**Q: Can this UPS model be monitored?**
A: The ST900U comes with a free download of PowerPanel provides a user-friendly dashboard interface for controlling and monitoring the UPS.

**Q: Do all of the outlets have battery backup power and surge protection?**
A: No, not all of the outlets have battery backup power. The ST900U has six battery backup and surge protected outlets and six surge protected outlets.

**Q: Can this unit accommodate larger plugs?**
A: Yes, the ST900U can accommodate four large transformer-based plugs without compromising the access of other outlets.

**Q: How do I mute the alarms?**
A: To turn the Alarm Off, quickly press the power button twice. You will hear two short beeps when the Alarm is turned Off. To turn the Alarm back ON, quickly press the power button twice. You will hear a single short beep when the Alarm is turned On.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable Backup Power! Great Value in the CyberPower ST425
*by S***N on April 25, 2025*

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.

### ⭐⭐⭐⭐⭐ Awesome.
*by K***K on January 9, 2026*

Just what I needed for the storms. Working great when the power goes out, on,out on during bad weather.

### ⭐⭐⭐⭐⭐ Zero percent failure rate!
*by D***Y on February 3, 2026*

For years, I always bought a name brand (3 letters and starts with the letter A). In the past few years, I have experienced a 100% failure rate. Before I retired, I was responsible for buying computers, displays, battery backups etc. for the county we lived in. I always bought the name brand and seldom had a problem. Here at home, I also bought the name brand but in the past 2 years, every backup failed, not the battery, but the electronics within the backup. I switched to CyberPower a few years ago. The 4 CyberPower backups I have are working great and I've not had a single failure.

## Frequently Bought Together

- CyberPower ST900U Standby UPS System, 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, Black
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**Shop now:** [https://www.desertcart.fi/products/83812286-cyberpower-st900u-standby-ups-system-900va-500w-12-outlets-2](https://www.desertcart.fi/products/83812286-cyberpower-st900u-standby-ups-system-900va-500w-12-outlets-2)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-17*