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Tripp Lite UPS 350VA 210W Desktop Battery Back Up Compact 120V DB9 RJ11 PC 50/60Hz - UPS - 210 Watt - 350 VA

Mfg.Part: INTERNET350SER CDW Part: 579927
Quick tech specs
  • Desktop Internet Office desktop standby 6 outlet Uninterrupted Power Supply protects your computer and its peripherals from blackouts brownouts power surges and line noise that can damage or destroy equipment wipe out valuable data
  • Single-line RJ11 jack protects phone/fax line against surges
  • DB9 Serial Monitoring
  • 3 battery supported and 3 surge-only outlets
  • 122 min runtime at half load; 33 min at full load
  • Tripp Lite is now a part of Eaton
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Know your gear

Ultra-compact standby UPS with built-in DB9 serial monitoring port protects PCs, network workstations and other systems reliant upon a contact closure serial interface for UPS monitoring and unattended system shutdown. Maintains AC output during blackouts and brownouts starting at 99V. Includes DB9 monitoring port with cabling, TEL / DSL line surge suppression, surge only outlets and LED indicators. PowerAlert software available free via download.

Key Buying Points:

INTERNET350SER standby UPS offers protection from blackouts, brownouts and surges on both AC and dialup modem lines

Provides seamless battery derived AC output during blackouts and severe brownouts so that connected equipment can be shut down without data loss

Built-in DB9 contact closure interface port with basic messaging enables automatic system shutdown if power fails while the system runs unattended

PowerAlert software available via free download from, cable included

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

Attractive stealth black UPS color scheme

Built-in single line phone jacks with line splitter protects peripherals with a standard dialup phone line connection, phone cable included

Built-in audible alarm and front panel LEDs offer continuous status information regarding line and battery power operation

350VA /180 watt power handling ability supports entry-level PC systems for several minutes during power fail conditions

Includes attached 6 ft. AC power cord, on/off power switch

Compatible with 120V / 60 Hz applications in USA, Canada, Mexico and other countries

2 year warranty (worldwide), plus $100,000 connected equipment insurance (USA and Canada only)

Package Includes:

INTERNET350SER standby UPS system

DB9 Serial Cable for use with PowerAlert UPS monitoring software

Telephone cable for use with single line dialup surge suppression

Instruction manual and warranty information
Advertised Price
Availability: 3-5+ Days
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Tripp Lite UPS 350VA 210W Desktop Battery Back Up Compact 120V DB9 RJ11 PC 50/60Hz - UPS - 210 Watt - 350 VA

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Tripp Lite UPS 350VA 180W Desktop Battery Back Up Compact 120V DB9 RJ11 PC is rated 4.60 out of 5 by 5.
Rated 5 out of 5 by from Here's hoping for a power outage Receptacles fit loosely Works
Date published: 2019-10-12T00:00:00-04:00
Rated 5 out of 5 by from EXCELLENT & DEPENDABLE! We use these battery packs to back up our computers in the office. With the winter weather being unpredictable at best, it is great to know we have the time to complete our work and save, without the panic of a power outage!
Date published: 2020-01-28T00:00:00-05:00
Rated 5 out of 5 by from Peace of Mind. Peace of mind. It is super on those days when power flips. No worries about our modem. Great product.
Date published: 2021-08-07T00:00:00-04:00
Rated 5 out of 5 by from It's okay for very small loads. I like it, but it's very much what it's supposed to be - which is: "Entry Level". After having this for many years now, I can say it's good for what it is, but I'd never buy something this small again. If you're looking to buy this one, don't. Buy the next size up (at least). Trust me.
Date published: 2014-10-01T00:00:00-04:00
Rated 5 out of 5 by from Tripp battery review Easy to set up
Date published: 2018-06-12T00:00:00-04:00