CyberPower CP550SLG Standby UPS Battery Backup and Surge Protector, 550VA/330W, 8 Outlets, Compact, UL Certified
*Price sourced from Amazon.com. Last updated 2026-05-27. Price and availability subject to change.
Bottom line: The CyberPower CP550SLG Standby UPS Battery Backup and Surge Protector, 550VA/330W, 8 Outlets, Compact, UL Certified is a solid pick with broad community endorsement in the power protection category, priced around $77.95, rated 4.5★ across 1,676 verified Amazon reviews. A solid choice — worth comparing against one or two close alternatives first.
The CyberPower Standby CP550SLG UPS safeguards a home office PC and other electronics (monitors, scanners, speakers, CD/DVD/MP3 players and more) from surges, sags, brownouts and other power disruptions. The CP550SLG provides surge protected, battery backup and features 550VA/330 Watt capacity, GreenPower UPS technology, 8-NEMA 5-15P receptacles, (4 wide-spaced), Compact design, 1- USB port, phone/fax (RJ11) line protection, EMI/RFI filters, PowerPanel UPS management software , GreenPower UPS - Advanced energy-saving circuitry that reduces UPS energy costs by 75 percent, USB Connectivity…
SpecPicks Verdict
SpecPicks classifies CyberPower CP550SLG Standby UPS Battery Backup and Surge Protector… as a solid pick with broad community endorsement in the power protection category, based on 1,676 verified Amazon reviews and our ranking model that weights rating × review-volume × price-fit. Use the Compare tool to put it side-by-side with two or three close alternatives before clicking through to Amazon.
Common buyer scenarios for power protection of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the Amazon listing before purchase. Prices, stock, and Prime eligibility update directly from Amazon's catalog and may have moved since this page was last verified.
Pros & Cons
Pros
- ✓ Highly rated — 4.5★ average across customer reviews
- ✓ Large, well-vetted feedback pool (1,676 reviews)
- ✓ LED INDICATORS: LED status lights indicate Power-On and Wiring Fault
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Confirm socket / form-factor / power-rating compatibility against your build before ordering
- ✗ Price, stock, and Prime eligibility update from Amazon and may have changed since this page was last verified
Key Features
- 550VA/330W Standby Battery Backup Uninterruptible Power Supply (UPS) System uses simulated sine wave output to safeguard workstations, networking devices, and home entertainment equipment
- EIGHT NEMA 5-15R OUTLETS: Four battery backup & surge protected outlets; Four surge protected outlets; INPUT: NEMA 5-15P right angle, 45 degree offset plug with five foot power cord
- LED INDICATORS: LED status lights indicate Power-On and Wiring Fault
- USB CONNECTIVITY: HID compliant USB port enables full integration with built-in power management and auto-shutdown features of Windows, Linux and Mac OS X
- 3-YEAR WARRANTY – INCLUDING THE BATTERY; $100,000 Connected Equipment Guarantee and FREE PowerPanel Personal Edition Management Software (Download)
Full Specifications
| Brand | CyberPower |
|---|---|
| Color | Black |
| Runtime | 8 minutes |
| Voltage | 120 Volts |
| Wattage | 330 watts |
| Amperage | 10 Amps |
| Unit Count | 1.0 Count |
| Form Factor | Compact |
| Connectivity | USB |
| Model Number | CP550SLG |
| Compatibility | Mac, Linux |
| Input Voltage | 120 Volts |
| Maximum Power | 330 Watts |
| Built-In Media | UPS System, User Manual, USB A+B Type Cable, and Telephone Cable |
Ready to buy?
CyberPower CP550SLG Standby UPS Battery Backup and Surge Protector, 550VA/330W, 8 Outlets, Compact, UL Certified is available on Amazon with Prime shipping and the full Amazon returns policy. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
*Price sourced from Amazon.com. Last updated 2026-05-27. Price and availability subject to change.
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