---
product_id: 83812286
title: "- ST900U Standby UPS Battery Backup and Surge Protector"
brand: "cyberpower"
price: "₩351654"
currency: KRW
in_stock: true
category: "Cyber Power"
url: https://www.desertcart.kr/products/83812286-st900u-standby-ups-battery-backup-and-surge-protector
store_origin: KR
region: South Korea
---

# 900VA/500W power capacity GreenPower high-efficiency design 12 total outlets with 6 battery backup - ST900U Standby UPS Battery Backup and Surge Protector

**Brand:** cyberpower
**Price:** ₩351654
**Availability:** ✅ In Stock

## Summary

> 🔋 Power up your productivity—never miss a beat or a byte!

## Quick Answers

- **What is this?** - ST900U Standby UPS Battery Backup and Surge Protector by cyberpower
- **How much does it cost?** ₩351654 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.kr](https://www.desertcart.kr/products/83812286-st900u-standby-ups-battery-backup-and-surge-protector)

## 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

- • **Reliable Power Backup:** Keep your devices running smoothly with 900VA/500W capacity and 15 minutes runtime for graceful shutdowns.
- • **Versatile Connectivity:** 12 outlets including 6 battery-backed and 4 widely spaced for bulky plugs—perfect for home office and entertainment setups.
- • **Eco-Friendly Efficiency:** GreenPower design reduces energy consumption without compromising performance, saving you money and the planet.
- • **Smart & Sleek Management:** Includes free PowerPanel software for real-time monitoring and control, wrapped in a compact, UL-certified design.
- • **Ultimate Protection & Peace of Mind:** Surge protection rated at 890 Joules plus a $125,000 connected equipment guarantee ensures your gear stays safe.

## Overview

The CyberPower ST900U is a compact, UL-certified standby UPS delivering 900VA/500W power with 12 outlets (6 battery-backed), surge protection, and energy-efficient GreenPower technology. It offers 15 minutes of runtime for safe shutdowns, includes free management software, and comes with a 3-year warranty plus a $125,000 connected equipment guarantee—ideal for safeguarding home office and entertainment electronics.

## 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.

## Features

- 900VA/500W Slim Profile Standby Uninterruptible Power Supply (UPS): Uses simulated sine wave output to provide battery backup power and to safeguard home office, home entertainment 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 right angle, 45 degree offset plug with five foot power cord
- 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; FREE PowerPanel Management Software (Download); UL SAFETY CERTIFIED: Product has been tested in a UL certified lab and listed with UL as meeting or exceeding safety standards

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07GZT2QW7 |
| Amperage | 15 A |
| Battery Average Life | 3 years |
| Battery Cell Type | Other Than Listed |
| Best Sellers Rank | #3 in Computer Uninterruptible Power Supply Units |
| Brand | CyberPower |
| Built-In Media | PS System^ User Manual^ USB A+B Type Cable |
| Color | Black |
| Connector Type | NEMA |
| Customer Reviews | 4.6 4.6 out of 5 stars (909) |
| EU Spare Part Availability Duration | 3 years |
| Enclosure Material | Plastic |
| Form Factor | Compact |
| Frequency Range | 47 – 63 Hz |
| Global Trade Identification Number | 00649532621521 |
| Input Voltage | 120 volts |
| Item Dimensions | 7 x 12.2 x 3.1 inches |
| Item Dimensions D x W x H | 7"D x 12.2"W x 3.1"H |
| Item Highlight | 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, UL Certified |
| Item Type Name | Uninterrupted Power Supply |
| Item Weight | 7.7 pounds |
| Lower Temperature Rating | 32 °F |
| Manufacturer | Cyber Power Systems (USA), Inc. |
| Maximum Power | 500 watts |
| Mfr Part Number | ST900U |
| Model Number | ST900U |
| Number of Items | 1 |
| Number of Outlets | 12 |
| Output Current | 4.17 A |
| Output Voltage | 120 volts_of_alternating_current |
| Output Wattage | 500 watts |
| Power Plug Type | Type B - 3 pin (North American & Japanese) |
| Runtime | 15 minutes |
| Specification Met | RoHS Compliant |
| Surge Protection Rating | 890 Joules |
| UPC | 649532621521 |
| Unit Count | 1 Count |
| Upper Temperature Rating | 104 °F |
| Voltage | 120 volts |
| Warranty Description | 3-YEAR WARRANTY – INCLUDING THE BATTERY, $125,000 Connected Equipment Guarantee and FREE PowerPanel® Personal Edition Management Software (Download) |
| Wattage | 500 watts |

## Product Details

- **Battery Cell Composition:** Other Than Listed
- **Brand:** CyberPower
- **Color:** Black
- **Product Dimensions:** 7"D x 12.2"W x 3.1"H
- **Voltage:** 120 volts

## Images

![- ST900U Standby UPS Battery Backup and Surge Protector - 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.

## Frequently Bought Together

- CyberPower ST900U Standby UPS System, 900VA/500W, 12 Outlets, 2 USB Charging Ports, Compact, Black
- CyberPower CP1500PFCLCD PFC Sinewave UPS System, 1500VA/1000W, 12 Outlets, AVR, Mini Tower,Black
- CyberPower CP1500AVRLCD3 Intelligent LCD UPS System, 1500VA/900W, 12 Outlets, 2 USB Ports, AVR, Mini Tower, Black

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.kr/products/83812286-st900u-standby-ups-battery-backup-and-surge-protector](https://www.desertcart.kr/products/83812286-st900u-standby-ups-battery-backup-and-surge-protector)

---

*Product available on Desertcart South Korea*
*Store origin: KR*
*Last updated: 2026-09-12*