SKU: 82340508705

APC Back-UPS CS 350VA

Sale price$152.10 Regular price$169.00
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Description

APC Back-UPS CS 350VAThe APC Back UPS CS 350VA is a compact, external standby uninterruptible power supply designed to protect your essential devices during outages and brownouts. With a 350 VA 210 W rating and 120 V input, this unit delivers reliable battery backup and surge protection for a home or small office setup. Its beige enclosure houses six outlets and interfaces for convenient management and safe shutdowns. Whether youre protecting a desktop PC, a monitor, a

The APC Back-UPS CS 350VA is a compact, external standby uninterruptible power supply designed to protect your essential devices during outages and brownouts. With a 350 VA / 210 W rating and 120 V input, this unit delivers reliable battery backup and surge protection for a home or small office setup. Its beige enclosure houses six outlets and interfaces for convenient management and safe shutdowns. Whether you’re protecting a desktop PC, a monitor, a modem, or a small router, this UPS is built to keep critical gear running when the lights go out.

Key benefits include data protection during unexpected power loss, hardware safety against power spikes, and easy integration with your computer systems through USB and RS-232 interfaces. The simple standby design and straightforward installation make it ideal for home offices and small workspaces where dependable power protection matters.

  • Power protection you can count on: 350 VA / 210 W capacity provides enough runtime for a desktop, monitor, and essential peripherals during short outages.
  • Outlet configuration for versatile protection: 3 battery-backed NEMA 5-15R outlets plus 3 surge-protected NEMA 5-15R outlets give you space to safeguard important devices and keep critical peripherals online.
  • Comprehensive interfaces for management: USB Type-B and RS-232 (DB-9) ports enable easy connection to a computer for monitoring, shutdown automation, and status reporting.
  • Reliable, simple design: External standby UPS with a neutral beige finish designed to blend into home and office environments while delivering dependable protection.
  • Brand you can trust: APC Back-UPS CS series is renowned for protecting valuable electronics, helping prevent data loss and hardware damage during power disturbances.

Technical Details of APC Back-UPS CS 350VA

  • UPS type: External standby (Back-UPS CS) to provide battery backup during outages and protection from surges.
  • Capacity: 350 VA / 210 W maximum load capacity for connected devices.
  • Input: AC 120 V supply suitable for standard North American outlets.
  • Outlet configuration: 3 x NEMA 5-15R outlets with battery backup; 3 x NEMA 5-15R outlets with surge protection.
  • Interfaces: 1 x RS-232 (DB-9) for management and optional monitoring; 1 x USB Type-B for computer connectivity.
  • Color and enclosure: Beige housing designed to fit discreetly in home offices and small workspaces.
  • Protection type: Battery backup outlets provide power during outages; surge-protected outlets guard against voltage spikes to connected equipment.
  • Application suitability: Ideal for protecting a computer, monitor, modem, router, and other essential devices in a home office or small business setup.

How to install APC Back-UPS CS 350VA

  • Place the UPS on a stable surface near a wall outlet and ensure it has adequate ventilation around the enclosure.
  • Plug the UPS into a properly grounded 120 V wall outlet using the included power cord (or the designated power input for the unit).
  • Connect critical devices you want protected during outages to the battery-backed NEMA 5-15R outlets. Reserve the surge-protected outlets for non-critical equipment.
  • For monitoring and graceful shutdown options, connect a computer or management device via the USB Type-B port and/or the RS-232 DB-9 port. Install any compatible APC management software if you plan to monitor status or automate shutdowns.
  • Power on the UPS and perform a quick test by simulating a power loss to verify that connected equipment continues running and that the UPS reports a low-battery condition when appropriate.

Frequently asked questions

  • Q: What is the capacity of the APC Back-UPS CS 350VA? A: It has a rated capacity of 350 VA / 210 W, suitable for protecting a desktop setup and essential peripherals during brief outages.
  • Q: How many outlets does it provide, and how are they protected? A: The unit offers six NEMA 5-15R outlets total—3 battery-backed outlets for critical devices and 3 surge-protected outlets for non-critical gear.
  • Q: Which interfaces are available for management? A: It includes a USB Type-B port and an RS-232 (DB-9) port for management, monitoring, and potential automatic shutdown scripting.
  • Q: What voltage does this UPS require and provide? A: The UPS operates on standard 120 V AC input and provides protection for devices connected to its outlets at that voltage.
  • Q: What color is the APC Back-UPS CS 350VA, and will it fit in a typical home/office setup? A: The unit is beige, designed to blend with typical equipment setups in homes and small offices.
  • Q: Is it suitable for protecting a router or modem? A: Yes, you can place essential networking devices on the battery-backed outlets to keep your internet connection stable during outages, enabling safer work and communication continuity.
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 82340508705

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JJR
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★★★★★ 5
Great all around printer !
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Awesome printer ! The software was a bit cumbersome at first for pc so make sure your pc and anti-virus ate updated and restart your pc and it should be a piece of cake . The ink is super easy to fill, no spills and every color spout is different so you really can't accidentally use the wrong color . It is a little bit on the loud side but not enough to complain about or remove a star especially at this price point . It's a very good price considering the amount of ink it comes with .
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Reviewed in the United States on May 17, 2026
K
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Kristina
Massapequa, US
★★★★★ 5
Great value, easy set up!
Style: All-in-One Printer
So far I give this Epson Eco Tank ET-2400 a five star review. It was very easy to set up. I bought for printing some legal documents as well as personal ones. The scan feature on this epson printer is amazing. Over the last several days I have been working to upload family photos that were in a bin my mom kept that we have had from well before I was born. These photos some of them are from the 1940's. I have been able to upload probably a thousand photos so far and still am only half way through. The espon scansmart app is amazing as well. I have been uploading up to 6 photos at once depending on the size, crop them and then save them all in a few easy steps. The app is able to detect the photos very quickly and separate them perfectly. I'm so glad I bought this print and I believe the ink will last as long as they claim. Would definitely recommend to family/friends.
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Reviewed in the United States on May 17, 2026
J
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John Downs
Louisville, US
★★★★★ 5
Easy to use, Prints great!
Style: All-in-One Printer, Style: All-in-One Printer
Full disclosure, I own a Epson Ecotank at home and I bought this one for my business. I do not print a lot otherwise I would’ve bought a laser printer. For someone who doesn’t do a lot of printing it’s perfect. It prints photos flawlessly as you see in my photo I printed a photo of my grandson. I would say even if your print needs are in the middle this would be a great printer. It doesn’t use much ink at all. And now you can find off brand ink for a fraction of the price of name brand.
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Reviewed in the United States on May 9, 2026
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Verified Purchase
Tom T
Phoenix, US
★★★★★ 3
Good Printer Imposible Instructions.
Style: All-in-One Printer
Received the printer yesterday and began the process of setting it up. First I needed to download the software and drivers. That's when the pain began. I understand wireless printers and shared network printers. In this case, I wanted to connect the printer to our home wireless network so different computers could access it. The User's Guide spends a little time on a "Wireless Direct" setup where you connect your computer wirelessly directly to the printer, but little time on a LAN printer setup. After loading all the software and drivers, I finally got the printer connected to my LAN, but it took a number of false starts and trial and errors to get the printer on the LAN to be visible to my laptop. There are essentially zero instructions about this in the user's guide. Eventually I got it to print on my laptop. Then I needed to hook it up to my wife's laptop. Again, no instructions on connecting multiple computers to the printer over a LAN. I did know enough to "share" the printer in the printer settings. I eventually installed the complete software and driver package on wife's laptop. When trying to connect wirelessly, I kept getting error codes. After a few hours, I defaulted to the USB cable installation method. Now I could at least complete the installation without errors. When I went to the list of printers on the laptop I saw the epson, but it said "offline". I think that's because what I was seeing was the USB instance of the printer, not the LAN version. I finally went to Device Manager and found a second instance of the epson printer marked "Network". I was able to make this the default and the printer would now print from both laptops. Only about 3 hours more to get a second laptop to print. Since the Epson EP 2400 is a home printer and likely to be set up for wireless operation, it should take a visit by the Geek squad to get it up and running. Epson should be ashamed of their manual and instructions. Now that it's working, it does seem to print well although a bit slow.
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Reviewed in the United States on September 27, 2023
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Apiffanie George
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★★★★★ 5
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Color: 1BK/1C/1Y/1M
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Reviewed in the United States on May 4, 2026

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