Quick tech specs
  • Desktop standby 6 outlet Uninterrupted Power Supply offers complete protection from blackouts brownouts and surges on both AC and TEL/DSL line connections
  • Built-in single-line tel/DSL connection w/ surge suppression protects modems fax machines or cordless phones
  • Mountable/ USB Port
  • Supports a variety of PCs workstations and other sensitive electronics
  • 3 UPS battery supported and 3 surge-only outlets
  • 3-year Tripp Lite Warranty/ $100,000 Lifetime Insurance
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Tripp Lite's INTERNET350U standby UPS offers complete protection for PCs, workstations and other sensitive electronics in an attractive ultra-compact, mountable housing. Prevents data loss and system downtime by providing battery supported AC output during brownouts and blackout conditions. 6 widely spaced output receptacles accommodate large transformer plugs without blocking outlets. 3 outlets with full battery support and surge suppression protect computers, monitors and other vital system components from loss of power. 3 additional outlets with surge suppression-only are ideal for printers and other accessories not requiring battery support. Single line telephone suppression jacks protect a single directly connected modem, fax machine, cordless phone or other peripheral on a single standard dialup or DSL phone line connection. USB port with PowerAlert monitoring software and cabling enables safe unattended system shutdown in the case of extended power failure. Audible alarm and front panel LEDs offer status information regarding line and battery power operation. 350VA / 180 watt power handling ability supports entry-level PCs for up to 15 minutes during power failures. 2 year warranty. $100,000 connected equipment Insurance (USA and Canada Only).


INTERNET350U standby UPS offers complete protection from blackouts, brownouts and surges on both AC and TEL/DSL line connections

6 widely spaced outlets accommodate large transformer plugs without blocking outlets

3 battery supported outlets protect computer, monitor and vital system peripherals, plus 3 additional surge suppression-only outlets for printers and other system accessories not requiring battery support

Provides battery derived AC output during blackouts and brownouts

350VA / 180 watt power handling ability supports a variety of PCs, workstations and other sensitive electronics

Supports entry-level PC systems up to 15 minutes during blackout conditions

Built-in single line TEL/DSL line surge suppression protects modems, fax machines or cordless phones on a single phone line connection

USB port, PowerAlert software and cabling offer safe unattended shutdown without data loss during extended outages

Supports Tripp Lite's Watchdog system service to restore operation to locked equipment through soft reboot of application / OS or hard power off/on reboot of connected equipment - ideal for unattended kiosk applications

Hot swappable user battery replacement supported via battery access door

Space saving, ultra-compact housing fits almost anywhere

Package Includes:


PowerAlert Software and USB cable

Instruction manual with warranty information
Availability: 461 units In Stock

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Tripp Lite UPS 350VA 180W Desktop Battery Back Up Compact LCD USB TEL/DSL
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Tripp Lite UPS 350VA 180W Desktop Battery Back Up Compact LCD USB TEL/DSL is rated 4.83 out of 5 by 30.
Rated 5 out of 5 by from Inexpensive UPS for WiFi Access Point. This is a cost effective way to keep power on my WiFi AP while my whole house generator is spooling up during a power outage.
Date published: 2021-09-27T00:00:00-04:00
Rated 5 out of 5 by from Yes, I would and intend to do so. I use this product as the back up power supply base for our new TV...and intend on buying more of these in the future...I was told by the manager of our local Office Supply business about this item. Another feature is the warranty...excellent.
Date published: 2022-02-08T00:00:00-05:00
Rated 5 out of 5 by from Useful Product I use this backup to transition to a generator when the power goes out. It is small and compact to plug in a modem, switch, and router. So far so good.
Date published: 2021-09-21T00:00:00-04:00
Rated 5 out of 5 by from Small, light weight, compact and works. Small compact, light weight, powerful and works well. I would buy this product again.
Date published: 2022-02-04T00:00:00-05:00
Rated 5 out of 5 by from yes Works great! Just what we needed.
Date published: 2020-12-21T00:00:00-05:00
Rated 5 out of 5 by from A simple cost effective solution to my problem Use it on my desktop unit at work, by using it the buildings power fluctuations are no longer an issue.
Date published: 2020-10-08T00:00:00-04:00
Rated 5 out of 5 by from Small compact UPS This is a solid unit. Although it doesn't have the battery life of my Smart UPS's (all Tripp Lite), it is perfect for my Alexa devices, Bond, and anything else that could loose connection during a short power outage or brown out. Great quality from a great company with EXCELLENT customer service. I would highly recommend this unit and I trust Tripp Lite.
Date published: 2020-04-22T00:00:00-04:00
Rated 5 out of 5 by from definitely recommend this. Easy installation. Had problems with my old surge protector losing power during thunder storms. Router kept going back to default settings and I would lose internet. No problems since installing this.
Date published: 2020-06-18T00:00:00-04:00
Rated 5 out of 5 by from So far so good. I haven't had an outage so can't comment on the protection as yet. I do hope that the battery life is good....time will tell.
Date published: 2020-05-30T00:00:00-04:00
Rated 5 out of 5 by from Great little product This product works as advertised. We have a lot of short power outages where I live and it has already maintained power to my internet router and printer during two brief outages. No interruption in internet, and no rebooting of the printer! Highly recommended for devices with relatively small power needs (sizing your UPS correctly is important).
Date published: 2020-05-06T17:18:32-04:00
Rated 5 out of 5 by from I would purchase the product again if needed. Deployed the 350VA UPS for use powering a DSL modem at a remote radio communications site. The UPS provides secure power for the modem at this site so that it remains "linked" with the balance of the radio system.
Date published: 2019-12-27T00:00:00-05:00
Rated 5 out of 5 by from Just sits there and runs The Internet 350U operates quietly and silently in the background. Once you plug in your PC, peripherals, and phone connections, it works reliably in the background. Just be sure to provide plenty of ventilation space around and under the unit.
Date published: 2012-10-29T00:00:00-04:00
Rated 5 out of 5 by from Compact and reliable We use this for a very compact mobile recording rig. We don't need a lot of wattage, but we need it to be lightweight and easy to pack. So far this has filled the bill very nicely! Also big kudos to Tripplite tech support, who set us up with this unit.
Date published: 2016-07-24T00:00:00-04:00
Rated 5 out of 5 by from Great product . I would buy it again I lose power frequently so i purchased a generator and was advised to purchase this for my internet modem
Date published: 2018-09-12T00:00:00-04:00
Rated 5 out of 5 by from The product is very well made. Price and reviews was a major factor in purchase.
Date published: 2018-06-30T00:00:00-04:00
Rated 5 out of 5 by from Very good product will buy again! Very good product will buy again!
Date published: 2017-10-10T00:00:00-04:00
Rated 5 out of 5 by from Great product! Great to have the security that my pc is protected!
Date published: 2017-10-23T00:00:00-04:00
Rated 5 out of 5 by from works as advertised Works just as promised, but I wished it could notify me when I've plugged in more wattage than it can handle--and also when the battery won't hold a charge any longer. I discovered that the hard way when it didn't work during a power outage. Tripp-lite, how about some smart status notifications?
Date published: 2013-09-05T00:00:00-04:00
Rated 5 out of 5 by from Quick Install,great product! Small, neat, room for all cords Love that the product is small and square; as opposed to long, chunky and oblong. Easy Install. 4 minute set up. Would definitely recommend to others.
Date published: 2018-06-11T00:00:00-04:00
Rated 5 out of 5 by from Easy to use, handy on the wall mount. Keeps my satellite receiver from losing all sat info when get power loss/outage.
Date published: 2015-12-03T00:00:00-05:00
Rated 5 out of 5 by from Very reliable product Where I work has occasional, short black outs. This is perfect to keep my computer running and safe from the surges.
Date published: 2018-03-12T00:00:00-04:00
Rated 5 out of 5 by from Great for Keeping Your Home Internet Going I bought this for my home Internet modem and router so that they'll stay running when the power goes out. This ensures that I'll still have Internet when the power goes out.
Date published: 2018-04-29T00:00:00-04:00
Rated 5 out of 5 by from Always dependable and long lasting We use this brand of battery backup on all the equipment in our office. Extremely user friendly.
Date published: 2018-10-12T00:00:00-04:00
Rated 5 out of 5 by from Good product Nice and compact, easy to set up.
Date published: 2019-05-09T00:00:00-04:00
Rated 5 out of 5 by from Great Customer Service I had a problem. During a lightening storm, we did not loose electricity to the house, but the TrippLite battery backup turned itself off, and my connected NAS died (totally unresponsive to pressing the power button to turn it on). TrippLite Customer Service was excellent. They were very helpful, clear, and communicative about the assessment and warantee process. Their followup through the process was excellent. I wish the customer service at other companies was great like theirs. Its nice to use good products and know that the company will professionally stand behind them when there is an issue.
Date published: 2018-11-02T00:00:00-04:00
Rated 5 out of 5 by from Good Product I use this in the office, we are in a area prone to lightening strikes, and my office in particular has weird electrical issues that make me nervous to have my PC plugged into the wall directly and this is exactly what I needed for piece of mind and to protect the company's fixed assets. I know it works because I have been able to save my work and power down the PC during a power outage already, and I can hear the surge protection kicking in (it BEEPS loudly) when I use a laser printer (NOT plugged into the surge protector at all, it's plugged into a completely different outlet in my office) which means it is protecting some type of weird electrical surge in the wiring in my office -- Definitely worth the investment by far.
Date published: 2015-12-03T00:00:00-05:00
Rated 5 out of 5 by from Feedback As far as I know with my overwhelming limitations, I am satisfied with my purchase. Representatives were helpful to me. THANKS
Date published: 2017-12-06T00:00:00-05:00
Rated 5 out of 5 by from Some issues I have 4 of these through out my restaurant. 3 work perfectly. 1 I had some major issues with. The battery life was not long on it and it died on me, had to be replaced. It was constantly beeping and didn't do it's job.
Date published: 2013-10-03T00:00:00-04:00
Rated 5 out of 5 by from Small, easy to set up, trustworthy I have purchased 2 of these for our optometric office. One had to be strapped to the base under a retinal camera - and it fit easily. The other went in a corner next to our NAS. Again, lots of space. Set-up was a snap. And, of course, I got the reliability of a TrippLite product.
Date published: 2017-03-08T00:00:00-05:00
Rated 5 out of 5 by from I would buy this poduct again I use the product in an office extention, with the enterprice Pc, and helps me so much because we have electrical turn offs by the clima. I think the backup time is too short
Date published: 2019-10-31T00:00:00-04:00