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

Based on 13 reviews
Condition: New
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$174.99
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Availability: In Stock.
Fulfilled by Adorama

Arrives Monday, Nov 16
Order within 19 hours and 10 minutes

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At a glance

Condition
New
Model
CST135UC
Dimensions
17 x 12.75 x 7 in
Weight
23.4 lb
Color
Black
Material
Metal
Form Factor
Tower
Warranty
1 Year Limited Warranty

Features 9

  • 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.

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 a utility power failure. The CST135UC comes with a three-year warranty (including coverage of batteries) and a $500,000 Connected Equipment Guarantee.Battery BackupSupplies power long enough for equipment to properly shut down when utility power fails. Helps prevent loss of data and minimizes the component stress caused by a hard shutdown.Surge ProtectionDiverts excess voltage away from sensitive electronic equipment during an AC power surge or power spike to prevent damage.Automatic Voltage Regulation (AVR)AVR increases the AC power and maintains a safe voltage level without switching to battery mode and conserves battery life.Multifunction LCD PaneDisplays immediate, detailed information on the battery backup and power conditions, alerting users to potential problems before they can affect critical equipment and cause downtime.USB Charge PortsRapidly charge and power USB devices.Data Line ProtectionPrevents power surges that travel through coaxial and Ethernet lines from causing damage to electronics.Widely Spaced OutletsThe widely-spaced outlets allow you to conveniently add transformer-sized plugs without blocking other outlets.Ultra Quiet DesignMinimizes noise during operation for a quieter work environment.Audible AlarmsProvides audible notification of certain events such as running on battery power, low battery, or overload conditions.PowerPanel Personal SoftwareProvides a user-friendly dashboard interface for controlling and monitoring the UPS. Free software download available. See the Resources tab.Simulated Sine Wave OutputProvides a manufactured waveform output to supply cost-effective battery backup power for equipment that does not require sine wave output.Line Interactive TopologyExists when a line interactive UPS has an autotransformer that regulates low voltages (e.g., brownouts) without having to switch to battery.GreenPower UPS Bypass DesignA patented design that allows utility power to bypass the UPS transformer, when AC power is stable, which reduces energy consumption, noise, and heat buildup.ENERGY STARThis model is an ENERGY STAR certified Uninterruptible Power Supply (UPS) system. ENERGY STAR is the trusted, government-backed symbol for energy-efficient products and practices that help save money and protect the environment.Typical Applications: Automatic Voltage Regulation Desktop Computers Home Networking Home Theater Equipment Personal Electronics Routers & Modems VoIP Phone Systems Workstations

Specs 32

Brand CyberPower
Battery Cell Composition Lead Acid
Voltage 120
Color Black
Material Metal
Form Factor Tower
Input Voltage 120 volts
Maximum Power 810 watts

Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Nov 16

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


Critical Item
We were dismayed not to be able to buy these locally any more, since we have thousands of dollars worth of electronics at risk. Fast delivery and even though the UPS was a bit hard on one of the external boxes, the product packaging is sturdy enough to take it.
Reviewed in the United States on July 17, 2026 by S. Linkletter

Works as advertised.
After returning the Vivtir UPS bought this one. Had no trouble installing, and setting up. Been running for a couple of weeks and no problems at all.
Reviewed in the United States on July 11, 2026 by terrill martz

Recommend
This is a great unit for computer, tv, etc. Just make sure you know how to silence it before the power goes out if you plant to let it run until it dies. It's not hard to figure out if you read the directions but there is not a specific button for silence only. Other than that it's great!
Reviewed in the United States on May 23, 2026 by Amazon Lover in Houston, TX

Good Value
Runs computer, router, modem and 3 monitors for 30 mins.
Reviewed in the United States on June 16, 2026 by michael cullen

Good Product. Good Price. Packaging is Awful.
I purchased two of these units for my stereo cabinet. Plugged my internet router/modem to one, security systems to the other. Also connected my home theater PC and used the USB cable so it will shut down the computer if power is out for more than an hour. I was pleasantly surprised that CyberPower has the software available for easy download/install on home Linux systems, no jumping thru hoops. I am deducting a star because the packaging for shipping leaves a lot to be desired. Both units came in their original retail packaging without any additional preparation. Not even an extra piece of scotch tape. Needless to say both boxes were literally falling apart by the time they were delivered. Anyway, I'm glad both units worked and weren't damaged in transit. I like that you can silence the alarm permanently since the power always seems to go out in the middle of the night. I also like that you can have up to 10 devices plugged in (5 surge, 5 battery) if needed. ... show more
Reviewed in the United States on May 31, 2026 by Sine B

More compact then expected
Working as it should tested power fail mode working, display is viewable , a more compact design then my older unit, also appears to use a different battery then my slightly larger unit. So far so good.
Reviewed in the United States on March 25, 2026 by Bryon A Carpender

Great in emergencies
Works great for the cpap machine shows it will run for 240 mins … great for emergency power outages, plus it has a usb c on it
Reviewed in the United States on March 4, 2026 by Jonny a.

read instructions
Easy to connect, reasonable price.
Reviewed in the United States on February 1, 2026 by Mary L. Thomas
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