Mfg.Part: BK350 | CDW Part: 290573 | UNSPSC: 26111701
Availability: In Stock
Was $130.00
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Product Overview

The effects of power problems include keyboard lockup, complete data loss, hardware degradation, damaged motherboards, and more, making downtime inevitable. An APC Back-UPS CS instantly switches your computer to emergency battery backup power and allows you to work through brief power outages or to shut down your system in the event of an extended outage. High-performance surge suppression protects your computer from electrical noise and damaging power surges - even lightning.


Additional Surge Protected Outlets

Audible Alarms

Cord Management

Intelligent Battery Management

Internet FAX - modem - DSL protection

Overload Indicator

Replace Batt Indicator

Site wiring fault indicator


Unattended Shutdown

User Replaceable batteries

USB compatible
APC Back-UPS CS 350VA UPS is rated4.67 out of5 by18.
Rated 5 out of 5 by from Best YetBought this unit to replace one we had for over 12 years. This is more compact and looks so much better. It was easy as pie to hook up and has been the best. Looking forward to another 12+ years with my APC!
Date published: 2014-01-22T00:00:00-05:00
Rated 5 out of 5 by from Recommend to everyoneSold these to many of my costumers and haven't had any disappointments yet.
Date published: 2017-04-13T00:00:00-04:00
Rated 5 out of 5 by from nullOn March 5, 2011 a huge thunderstorm with hundreds of lightning strikes caused a main power line to fall in the alley. It sent 7200 volts into my home. Blowing out the master breaker and the complete breaker panel. I was working at the computer when I heard the blast in my house and all the lights went out except my computer. The BK350 kept everything running until I shut it off a few seconds later. It protected the Computer, Scanner, Printer, Work Light and a Radio. Two days later when our system was restored I turned on the computer. It would come on, but not stay on. I hit the reset button on BK350 and it exploded internally. I removed it and put a backup in place and the computer ran fine. It saved my computer and accessories.
Date published: 2011-03-31T00:00:00-04:00
Rated 5 out of 5 by from Works as PromissedI bought this for my daughters desktop because her last one was damaged when the power went off several times which happens in our area. This has helped save the computer many times.
Date published: 2013-11-23T00:00:00-05:00
Rated 5 out of 5 by from Great UPSGreat product - APC Has done it again with this fantastic, inexpensive UPS!
Date published: 2017-04-11T00:00:00-04:00
Rated 5 out of 5 by from Not disappointedMy experience with this product was wonderful. I would recommend it to anyone who's looking for a similar product like this.
Date published: 2017-04-11T00:00:00-04:00
Rated 5 out of 5 by from Works greatWorks great, I would recommend this to all computer users.
Date published: 2011-07-22T00:00:00-04:00
Rated 5 out of 5 by from CS 350 Back Up Power SupplyLike this product very much. It is sufficient for my needs.
Date published: 2010-02-08T00:00:00-05:00
Rated 5 out of 5 by from A good purchaseI hav had several units. They all seem to be great. Weakest part of any of the units is battery life.
Date published: 2011-12-08T00:00:00-05:00
Rated 5 out of 5 by from Works well.Dependable. Easy to install. Very pleased with quality.
Date published: 2018-02-20T00:00:00-05:00