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Tripp Lite AVR Series Ultra-Compact Line-Interactive UPS, USB, 8 Outlets, 550 VA, 420 J

★★★★★ 155 Reviews | Write a Review


Your Price: $126.90/EA      


  • Power protection and battery backup for home and office computers and electronics.

  • Protects your valuable equipment from damage, downtime and data loss.

  • Battery backup supports equipment during outages.

  • AVR corrects power sags (brownouts) and overvoltages.



Protect home and office computer systems and electronics with this Line-Interactive UPS System. Some outlets have both battery backup and surge/noise protection, and some have surge/noise protection without battery backup. The "surge-only" outlets allow you to connect additional equipment without overloading the UPS or reducing the backup runtime available during an outage. Select outlets have extra-wide spacing to accommodate bulky AC adapters without blocking adjacent outlets. All Tripp Lite UPS systems also include built-in surge protection and noise filtering to shield your equipment from destructive transient voltages and electromagnetic (EMI/RFI) line noise. Use the HID-compliant USB port and your computer's built-in power management features or the USB port with Tripp Lite's free PowerAlert® software to manage this UPS.

Warranty: Manufacturer's three-year warranty.


Global Product Type Backup Systems
System VA 550 VA
Number of Outlets/Type 4 UPS/Surge,4 Surge Only
Run Time 20 minutes
Joules Of Surge Protection 420 J
Protection Type DSL,Fax,Modem,Phone,Power
Backup Time at Half Load 9 minutes @ 150 Watts
Lines 1
Automatic Voltage Regulation (AVR) Yes
Multimedia Protection DSL/Telephone
Battery Recharge Time 4 h
Connected Equipment Guarantee/Warranty $100,000 Ultimate Lifetime Insurance
Backup Time at Full Load 3 minutes @ 150 Watts
Jacks RJ11
Connector/Port/Interface USB
Noise Protection EMI/RFI Noise Suppression
Number of Outlets 8
Cord Length 6 ft
Telephone/Internet Protection DSL,Fax,Modem,Phone
Width 11 1/4"
Height 3 1/2"
Depth 6"
Alarm(s) Audible
Emergency Power Off (EPO) No
Input Frequency 60 Hz
Model Name/Number AVR550U
Compliance Standards CSA Certified,FCC Class B Certified,NOM,RoHS Compliant,UL Listed
Pre-Consumer Recycled Content Percent 0%
Post-Consumer Recycled Content Percent 0%
Total Recycled Content Percent 0%
Disclaimer Statement Run Time based on single PC load with 15" flat panel monitor.


International Travel Plug Adapter for Notebook PC/Cell Phone, 110V

  • All-in-one unit; plug adapters for more than 220 countries.
  • Simple slide-out plugs.
  • Compact and self-contained.
  • Safety release button and built-in fuse.
SKU: KMW33117

Your Price


Total Customer Reviews155
Overall Score : ★★★★★ (4.6 / 5)
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I would buy this product again and again.
Rating : ★★★★★ (5 / 5)

I purchased this UPS again to replace the same unit that finally failed after more than 10 years of service protecting phone equipment against power surges. This unit does a more than adequate job for a great price and a great warranty.

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I would not recommend this product
Rating : ★★★★★ (1 / 5)

We purchased this as a battery back up for our work computer and already are sending it back. It will not work!

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Not a big fan of this product and its capabilities
Rating : ★★★★★ (1 / 5)

Sadly this product didn't hold up for us and we had to return it for warranty replacement. I was also disappointed by the short amount of time it can provide 110v in the event of a power failure.

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I refer Tripp Lite to my friends often since buying the UPS.
Rating : ★★★★★ (5 / 5)

Northern California resident dealing with lots of power outs from the power company PG&E. Often on a generator. Got it to protect my equipment incase of an outage and have a single connection to the generator. It cleanly powers my audio system, led tv, led lights, and a couple other devices. No high pitched whining from the unit like some surge protectors do. Not crazy heavy or cumbersome. 10/10 product.

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Protect Your Investments!
Rating : ★★★★★ (4 / 5)

Protecting 65" TV, Sat. box and DVD. I like the alarm notification and the pop out reset button. Can't beat their warranty coverage too. Frequent power outages and thunderstorms where I live make this a priority!

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box works-software issue
Rating : ★★★★★ (3 / 5)

Using it to prevent satellite tv box from resetting every time there is a power glitch. Box itself works, but the software to disable the alarm doesn't work and you have not helped me fix it.

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I own 3 Isobar protectors so I decided to try their UPC.
Rating : ★★★★★ (5 / 5)

I don't like writing reviews without ever testing the battery back up running time or the surge protection, or testing the warranty! but it's a good thing I haven't had to test the system yet! I will say this, the unit seems to be well made, all my stuff plugged in with no problem, and the price was right. I have read on the internet that Tripp Lite Isobar surge protectors were tested as being the best at stopping surges, and even saw someone opened up and explained why it was the best compared to others he had opened, so I'm hoping that same technology they used in the Isobar has been used in this UPC surge protector, but I'm not going to take my Isobar and my UPC apart to see! Anyway I gave it a 5 star rating because of price and features, and because I'm hoping they built it as good as the Isobar. My last UPC was made by another major company, it worked, but the batteries didn't last long and they weren't cheap, so after the third battery died in 5 years I decided to try another brand and went with Tripp Lite because I have 3 of their Isobar surge protectors. I live in an area with frequent electrical issues, some of it's from lightning and others is from dirty power, and since everything these days use microchips which are not well suited to handle surges I use my Isobars to protect my TV and DVD player, and use another for the refrigerator, and another for the washer and dryer, on less expensive stuff I use cheaper surge protectors or none at all, and on my expensive audio system. I've also taken my surge protection to a different level then most do and I had a whole house surge protector added to the breaker box, but again due to frequent lightning, high winds, ice storms, and maybe dirty power that makes the lights flicker when none of that other stuff is happening (I had an electrician check the home system and he said we were getting dirty power from the pole) I decided I needed as much protection as I could get especially with lightning.

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I will purchase another of these when required
Rating : ★★★★★ (5 / 5)

We have this product connected to our main computer and during Hurricane Dorian it worked as it should. Very happy with this product!

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Tripp-Lite - the best and safest component to have!
Rating : ★★★★★ (5 / 5)

This Tripp-Lite component is just one of many that I use on a daily basis here in my Recording Studio, my live rehearsal venues, and in my personal computer setups. Tripp-Lite components are key to saving your studio projects or anything on your computers in all environments. There have been instances of unannounced power outages as well as the voltage spikes from many sources, some even naturally caused. I highly, highly recommend to anyone to have a few of these Tripp-Lite components installed and in use daily. Definitely a project saver!

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Great options for battery backup as well as surge protectio.
Rating : ★★★★★ (5 / 5)

Easy to setup and feel confident that the product will protect my equipment.

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