Quantity:

More Buying Choices

Add to Cart Buy.com
$50.23 + Free Shipping
In Stock

Add to Cart GizmosForLife
$54.91 + $8.99 shipping
In Stock

Add to Cart The Price Pros
$55.67 + $10.52 shipping
In Stock

26 used & new

Have one to sell? Sell yours here

Express Checkout with PayPhrase

What's this? | Create PayPhrase

Share with Friends

Tripp Lite INTERNET550SER Internet Office 550VA Compact UPS (8 Outlets)

See larger image

Share your own customer images

Tripp Lite INTERNET550SER Internet Office 550VA Compact UPS (8 Outlets)

Other products by Tripp Lite

3.4 out of 5 stars See all reviews (9 customer reviews) | More about this product

List Price:	$58.00
Price:	$50.23 & this item ships for FREE with Super Saver Shipping. Details
You Save:	$7.77 (13%)
	o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o o

In Stock.
Ships from and sold by Amazon.com.

Want it delivered Tuesday, November 10? Choose One-Day Shipping at checkout. Details

24 new 1 used from $42.99 1 refurbished from $119.15

Special Shipping Information: This item normally requires a shipping charge, but is eligible for FREE Super Saver Shipping today.

Frequently Bought Together

Tripp Lite SMART1000LCD Digital LCD 1000VA Line-Interactive UPS (8 Outlets)

Iomega Prestige 1 TB USB 2.0 Desktop External Hard Drive 34275

Total List Price: $428.98
Price For All Three: $280.87

Show availability and shipping details

This item: Tripp Lite INTERNET550SER Internet Office 550VA Compact UPS (8 Outlets)
In Stock.
Ships from and sold by Amazon.com.
This item ships for FREE with Super Saver Shipping. Details
Tripp Lite SMART1000LCD Digital LCD 1000VA Line-Interactive UPS (8 Outlets)
In Stock.
Ships from and sold by Amazon.com.
This item ships for FREE with Super Saver Shipping. Details
Iomega Prestige 1 TB USB 2.0 Desktop External Hard Drive 34275
In Stock.
Ships from and sold by Amazon.com.
This item ships for FREE with Super Saver Shipping. Details

What Do Customers Ultimately Buy After Viewing This Item?

	53% buy the item featured on this page: Tripp Lite INTERNET550SER Internet Office 550VA Compact UPS (8 Outlets) 3.4 out of 5 stars (9) $50.23
	15% buy APC Back-UPS ES 8 Outlet 550VA 120V 4.6 out of 5 stars (53) $57.37
	13% buy Cyberpower CP550SL UPS - 550VA/330W 8-Outlet RJ11 Compact Design EMI/RFI USB 3.8 out of 5 stars (10) $53.54
	10% buy APC BE750G 10-Outlet Power-Saving Uninterruptible Power Supply 4.4 out of 5 stars (59) $84.99

Explore similar items

Technical Details

Sold Individually

› See more technical details

Product Details

Product Dimensions: 2 x 3.5 x 5.5 inches ; 6.5 pounds
Shipping Weight: 13 pounds (View shipping rates and policies)
Shipping: Currently, item can be shipped only within the U.S.
Note: Gift-wrapping is not available for this item.
ASIN: B000COER4Y
Item model number: INTERNET550SER

Average Customer Review: 3.4 out of 5 stars See all reviews (9 customer reviews)

Amazon.com Sales Rank
Popular in this category: (What's this?)
#17 in Electronics > Accessories & Supplies > Power Protection > Uninterrupted Power Supply (UPS)
Date first available at Amazon.com: December 1, 2005

Would you like to update product info or give feedback on images?

Product Description

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.

Customers Who Bought This Item Also Bought

Intel Celeron 430 1.80GHz 512KB Cache 800MHz Processor

5.0 out of 5 stars (1) $39.99

APC BE350G ES 6 Outlet 350VA Back-UPS

4.3 out of 5 stars (17) $40.98

Tripp Lite BC350 BC Personal 350VA Compact UPS (6 Outlets)

3.2 out of 5 stars (5) $38.44

Kingston DataTraveler 101 - 8 GB USB 2.0 Flash Memory DT101C/8GB (Cyan)

3.8 out of 5 stars (12) $21.90

Western Digital 250 GB Caviar Blue SATA 7200 RPM 8 MB Cache Bulk/OEM Desktop Hard Drive WD2500AAJS

4.2 out of 5 stars (8) $44.99

› Explore similar items

Related Items from External Websites

(What's this?)

Low Profile Compact Fluorescent Wallpack

$59.00+ $7.95 Estimated Shipping

BuyLightFixtures

Tripp Lite Internet Office UPS System - 550VA

$59.99No Shipping Info

OfficeMax

Tripp Lite Low-Profile 450-Watt USB UPS System

$84.99Free Shipping

Inverters R Us

Tags Customers Associate with This Product

(What's this?)

Click on a tag to find related items, discussions, and people.

ups(2)

See all 2 tags...

Customer Reviews

Average Customer Rating

3.4 out of 5 stars (9 customer reviews)

5 star:		(4)
4 star:		(2)
3 star:		(0)
2 star:		(0)
1 star:		(3)

Share your thoughts with other customers:

Create your own review

Most Helpful Customer Reviews

1 of 1 people found the following review helpful:

4.0 out of 5 stars Works Great, April 30, 2009

By	Jack (Columbus, GA) - See all my reviews

Tripp Lite INTERNET550SER 550VA UPS Compact Low Profile Standby 8 outlets w/ DB9 Port
We have been using our Tripp 550SER since October 2008. It meets our expectations for a great surge and small back up power supply. It would be nice if there were an option to turn off the beep alarm when the standby power is running.
This is a great unit.

Comment Comment | Permalink | Was this review helpful to you? Yes No (Report this)

2 of 3 people found the following review helpful:

5.0 out of 5 stars Quality Product, July 23, 2007

By	ManhassetZ (Manhasset N.Y.) - See all my reviews

Originally purchased a similar product by Trip Lite five years ago for another computer and it is still working fine. Therefore, buying this UPS for an new computer was an easy choice. In additon, the compact size is a plus.

Comment Comment | Permalink | Was this review helpful to you? Yes No (Report this)

5.0 out of 5 stars It works as designed., October 30, 2008

By	Skarz "Skarz" (Nashville, TN) - See all my reviews

Can find no fault with UPS -- it sits there and does it's job. Have used it 24/7 for a couple of months with no problems.

Comment Comment | Permalink | Was this review helpful to you? Yes No (Report this)

Share your thoughts with other customers: Create your own review

› See all 9 customer reviews...

Most Recent Customer Reviews

1.0 out of 5 stars A Total Waste of Money
I've used this battery backup for less then a year and it no longer works. When the power goes off, so does everything plugged into this Tripp Lite battery backup. Read more

Published 4 months ago by S. Hogan

1.0 out of 5 stars Didn't last long
This unit failed 2 months after purchase. The surge protected side lost power and would not reset. I tried to get it replaced but got no response. Read more

Published 9 months ago by Robert Moses

1.0 out of 5 stars They break
I purchased 4 of the 1000VA models, one did not even start out of the box and out of the other three, two lasted less than 6 months prior to going pop and smoke. Read more

Published 11 months ago by Donna J. Sargent

5.0 out of 5 stars Very reliable
I just had the video circuit board repaired in my TV due to a lightning outage (1 to 2 seconds) for $245.00. Read more

Published 22 months ago by P. Laprocina

4.0 out of 5 stars Worthwile
It just sits there and works. Hookup was easy, and there are plenty of outlets. I hope it never gets the actual lightening test but am reasonably confident it will operate as... Read more

Published on September 14, 2007 by J. A. Burrus

5.0 out of 5 stars Battery back up
No trouble out of this unit. Keeps me from any data loss. from power spikes.

Published on September 3, 2007 by Craft_t1

› See all 9 customer reviews...

.jsOffDisplayBlock { display: block; } .jsOffDisplayInline { display: inline; } .jsOffVisibility { visibility: visible; } .jsOnDisplayBlock { display: none; } .jsOnDisplayNoneBlock { display: block; } .jsOnDisplayNoneInline { display: inline; } .jsOnDisplayInline { display: none; } .jsOnVisibility { visibility: hidden; } .jqOnDisplayBlock { display: none; } .jqOnDisplayInline { display: none; } .jqOnVisibility { visibility: hidden; } .jqOnDisplayNoneBlock { display: block; } .jqOnDisplayNoneInline { display: inline; }