Tripp Lite 550VA 300W UPS Desktop Battery Back Up Compact 120V DB9 RJ11 PC

Mfg.Part: INTERNET550SER | CDW Part: 845465 | UNSPSC: 39121011
Availability: In Stock
Was $111.12
$65.99 Advertised Price
Advertised Price
Product Details
  • UPS
  • 8 Outlets (4 Surge Only)
  • 550VA
  • 300W battery backup
  • RJ-11
  • Serial
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Tripp Lite 550VA 300W UPS Desktop Battery Back Up Compact 120V DB9 RJ11 PC
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Product Overview

Main Features
  • UPS
  • 8 Outlets (4 Surge Only)
  • 550VA
  • 300W battery backup
  • RJ-11
  • Serial
Affordable full system protection with serial interface

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.

• INTERNET550SER 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 enables automatic system shutdown if power fails while the system runs unattended
• PowerAlert software available via free download from, cable included
• 4 battery supported outlets protect computer, monitor and one vital system peripheral, plus 4 additional surge suppression-only outlets for printers and other system accessories not requiring battery support
• Built-in single line phone jacks 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
• 550VA /300 watt power handling ability supports entry-level PC systems for several minutes during power fail conditions
• Ultra-compact housing fits anywhere, wall mountable
• 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 & Canada only)
• 8 outlets (4 UPS/surge, 4 surge-only)
• DB9 serial interface port and free software (web download) facilitate unattended shutdown
• Built-in jacks provide complete 1-line phone/DSL surge suppression
• Compact cabinet design fits easily on or under any desk, wall mountable
• $100,000 Ultimate Lifetime Insurance (USA, Puerto Rico & Canada only)

Package Includes:
INTERNET550SER 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
Tripp Lite 550VA 300W UPS Desktop Battery Back Up Compact 120V DB9 RJ11 PC is rated 5.0 out of 5 by 4.
Rated 5 out of 5 by from Perfect for my Entertainment Center I use this for my 65" LCD and Dish Network DVR as a backup against sudden power outages. It's funny when the power goes out and I'm still watching TV! It gives me enough time to power down each device correctly instead of them taking a direct hit.
Date published: 2014-10-02
Rated 5 out of 5 by from Love this unit! I am an application developer and work from home 50-hours per week. We get temporary outages (10 seconds to 4 minutes) on a weekly basis and my two INTERNET550SER's keep my laptop, 4 monitors and Internet connection up and running. I love these units. I can plug them in and feel confident that my equipment will stay powered.
Date published: 2014-10-01
Rated 5 out of 5 by from Generator Switchover Working in a government office we have a large generator that kicks in if we loose power. Sometimes it takes a minute for it to switch over, just enough time for the computers to loose power. We installed the Tripp-Lite's at every workstation and now when we switch to generators our computers remain on. Also, we don't have to worry about power surges when power is restored.
Date published: 2013-09-06
Rated 5 out of 5 by from Ready to go, right out of the box. Installation was simple, instructions were clear, and the unit performed exactly as the literature explained. The camera system in our building failed due to an unexpected failure of a similar UPS unit, causing a loss of monitoring of the site, and also caused a video monitor to fail. The Tripp unit offered an interface with the controlling computer, allowing an unattended shutdown. Very satisfied with the unit.
Date published: 2013-01-10
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