CyberPower SX650U UPS Battery Backup, 8 OUTLETS, 650 VA, 890 J
*Price sourced from Amazon.com. Last updated 2026-05-24. Price and availability subject to change.
Provides surge protection from lightning-induced surges and other power events that can damage electronic equipment. Delivers enough battery backup to connected electronics during a utility power failure, so you can perform a graceful shutdown to protect against the loss of data and damage to valuable electronics including computers, gaming consoles and broadband routers. Perfect for all your home office and entertainment needs.
SpecPicks Verdict
SpecPicks classifies CyberPower SX650U UPS Battery Backup, 8 OUTLETS, 650 VA, 890 J as a category leader on buyer feedback in the power protection category, based on 5 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 — 4.6★ average across customer reviews
- ✓ Protects electronic equipment and prevents data loss during a power outage.
- ✓ Ships via Amazon with Prime eligibility and the standard returns policy
Cons
- ✗ Limited review volume so far — fewer data points on long-term reliability
- ✗ 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
- Protects electronic equipment and prevents data loss during a power outage.
- Multiple outlets provide seamless connectivity.
- Power cord allows you to set up your system at a comfortable distance.
- External form makes it convenient to install and use.
- Sealed lead acid battery offers efficient performance.
Full Specifications
| Brand | CyberPower |
|---|---|
| Color | Black |
| Voltage | 120 Volts |
| Wattage | 650 watts |
| Model Number | SX650U |
| Output Voltage | 650 Volts |
| Output Wattage | 650 Watts |
| Item Dimensions | 14.17 x 4.35 x 7.87 inches |
| Mfr Part Number | 1 |
| Battery Cell Type | Other Than Listed |
| Number of Outlets | 8 |
| Enclosure Material | Plastic |
| Warranty Description | 3 Year Limited Warranty |
| Surge Protection Rating | 890 Joules |
Ready to buy?
CyberPower SX650U UPS Battery Backup, 8 OUTLETS, 650 VA, 890 J 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 2026-05-24. Price and availability subject to change.
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