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

Prices as of September 26, 2026, as listed by each retailer — verify the current price on the retailer's site before purchase.

Price history tracked at Macy's price tracker

14-day low
$174.99
Sep 13 · Macy's
Best price
$174.99
−0% vs high
14-day high
$174.99
All stores
$175$175$175
Sep 13Sep 26
  • Macy's
Lowest in 14 days: $174.99 at Macy's. Highest: $174.99. Current best is 0% below the 14-day high.

About this product

The CyberPower CST135UC is a line-interactive uninterruptible power supply (UPS) with simulated sine wave output, designed to provide battery backup and surge protection for desktop computers, networking equipment, and home entertainment systems. It features Automatic Voltage Regulation (AVR) to stabilize fluctuating power without using battery power, extending battery life. The unit includes two USB charge ports for mobile devices, an LCD panel for real-time monitoring, and data line protection for Ethernet and coaxial cables. Its wide-spaced outlets accommodate bulky adapters, and it operates quietly with audible alarms for low battery and overload conditions. A three-year warranty and $500,000 connected equipment guarantee are included.

  • 1350 VA / 810 W capacity
  • Simulated sine wave output
  • Automatic Voltage Regulation (AVR)
  • Two USB charge ports
  • LCD status monitoring
  • Wide-spaced outlets

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CST135UC 1350VA/810W Simulated Sinewave LCD — Price History