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CyberPower CST135UC 1350VA/810W Simulated Sinewave LCD Battery Backup UPS System, Black

CyberPower CST135UC 1350VA/810W Simulated Sinewave LCD Battery Backup UPS System, Black

Bottom line: The CyberPower CST135UC 1350VA/810W Simulated Sinewave LCD Battery Backup is a specs-and-price decision rather than a crowd-consensus one in the power protection category. Check the specification table below against one or two close alternatives — on price and spec fit, not on star ratings.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For retro PC hardware and period-correct parts, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ USB charge ports: (1) Type-A & (1) Type-C @ 4.0A (Shared)

Cons

  • ✗ Check the listed dimensions, connectors and platform compatibility against your setup before ordering
  • ✗ Price, stock, shipping and returns are set by the retailer and may have changed since this page was last updated

Manufacturer description

A mini-tower UPS with line interactive topology, the CyberPower Intelligent LCD CST135UC provides battery backup (using simulated sine wave output) and surge protection for desktop computers, workstations, networking devices, and home entertainment systems. The CST135UC uses Automatic Voltage Regulation (AVR) to correct minor power fluctuations without switching to battery power, which extends battery life. AVR is essential in areas where power fluctuations occur frequently.Two USB charge ports (one Type-A and one Type-C) power portable devices such as mobile phones and tablets, even during…

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SpecPicks Verdict

SpecPicks scored CyberPower CST135UC 1350VA/810W Simulated Sinewave LCD Battery… using a rating × review-volume × price-fit model applied to published specs and reviews across the power protection category. Compare with similarly-priced alternatives in the power protection category before committing. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

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 retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.

Key Features

  • UNINTERRUPTED POWER - The 1350VA/810W simulated sinewave output ensures your devices remain operational during power fluctuations, safeguarding against data loss and hardware damage.
  • EXTENDED RUNTIME - With 2 minutes of runtime at full load and 10 minutes at half load, this UPS provides ample time to save work and properly shut down sensitive electronics.
  • VERSATILE CONNECTIVITY - Equipped with 10 NEMA 5-15R outlets (5 battery/surge protected) and dual USB charge ports (Type A & C), it powers and charges a wide range of devices.
  • ADVANCED PROTECTION - Features 1500 Joules of surge suppression, EMI/RFI filtration, and network/coax protection, defending against power surges and line noise for optimal performance.
  • USER-FRIENDLY MANAGEMENT - A multifunction LCD and HID compliant USB port, coupled with PowerPanel Personal software, offer intuitive monitoring and control over your power backup.
  • ENERGY EFFICIENT DESIGN - Boasting GreenPower UPS Bypass Technology and Energy Star certification, this system minimizes power consumption, reducing your environmental footprint and costs.

Full Specifications

BrandCyberPower
ColorBlack
Runtime10 minutes
Voltage120.0
Wattage810 watts
MaterialMetal
Unit Count1.0 Count
Form FactorTower
ConnectivityUSB
Model NumberCST135UC
Input Voltage120 Volts
Maximum Power810 Watts
Connector TypeNEMA, USB
Output Current6.75 Amps
Output Voltage120 Volts
Output Wattage810 Watts
Frequency Range50/60 Hz
Item Dimensions17 x 12.75 x 7 inches
Mfr Part NumberCST135UC
Power Plug TypeNo Plug

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CyberPower CST135UC 1350VA/810W Simulated Sinewave LCD Battery Backup UPS System, Black is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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CyberPower CST135UC 1350VA/810W Simulated Sinewave LCD Battery Backup UPS System, Black
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