Kensington 72257 Ci20 Optical Mouse for PC or Mac

by Kensington

Product Details

• Product Dimensions: 9 x 6.2 x 3.5 inches ; 11.4 ounces
• Shipping Weight: 11.4 ounces
• Shipping: This item is also available for shipping to select countries outside the U.S.
• ASIN: B000FPKNZC
• California residents: Click here for Proposition 65 warning.
• Item model number: 72257
• Average Customer Review: 3.9 out of 5 stars  See all reviews (36 customer reviews)
• Date first available at Amazon.com: May 10, 2006

Product Description

Kensington CI20 Optical Mouse - Kensington K72257US.

Customer Reviews

Most Helpful Customer Reviews

7 of 7 people found the following review helpful:

5.0 out of 5 stars Great Mouse For The Money, Not For Diehard Gamers..., October 3, 2007

By 

"The Woj" (Downers Grove, IL) - See all my reviews

This review is from: Kensington 72257 Ci20 Optical Mouse for PC or Mac (Personal Computers)

After dropping over 40 bucks on a Logitech Mx518 which broke down after about a year, I did not want to spend a lot of money on a new mouse. After much "research" & reading the reviews here, I decided on the Kensington Ci20 (I was able to purchase mine for just over 20 bucks). The mouse is very responsive and has a great feel. This is primarily due to the rubber side grips and ergonomic shape. The Ci20 is larger than my "old" Logitech; consequently, it may not be a great choice for users with smaller hands. The mouse is responsive, but may not be "quick" & accurate enough for diehard gamers. If you are buying this as a gaming mouse, you may need to look elsewhere (I recommend the Razer Diamondback Acid Green). Even though the Logitech I used previously was buggy with my USB ports and the buttons gave out after about a year, it was much better for gaming than the Ci20. However, if you are not a dedicated gamer and are looking for a great mouse at a very reasonable price, the Ci20 is for you. I also would like to add the software is very easy to install, navigate and upgrade (unlike the Setpoint software from Logitech). Just plug it and and go. Overall one of the best mice I have ever used.

6 of 6 people found the following review helpful:

4.0 out of 5 stars Great price and features., December 5, 2006

By 

Sean Devereaux "filmsoup" (Los Angeles, CA) - See all my reviews
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Amazon Verified Purchase

This review is from: Kensington 72257 Ci20 Optical Mouse for PC or Mac (Personal Computers)

Smooth and accurate tracking. The extra buttons are a useful addition. Does feel a little big and moves on a smooth surface with less tension then I would like but a good overall value.

5 of 5 people found the following review helpful:

4.0 out of 5 stars Best for the right-handed user, May 15, 2007

By 

J. Hacking (Seattle) - See all my reviews
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Amazon Verified Purchase

This review is from: Kensington 72257 Ci20 Optical Mouse for PC or Mac (Personal Computers)

I got this mouse as a replacement for a Kensington PilotMouse which was the best mouse I ever used ---and wore out. Unfortunately, they don't make the pilotmouse any more and this one was the closest I could find. This mouse is advertised as being "optimized for right-hand use" and I am left handed. I am used to using right hand mouses but I admit I prefer a little less optimization which in this case means that the shape is a bit skewed and the extra buttons are on the wrong spot for me. If I were right handed, I rate this thing with five stars. As it is, four is all they get. What I like about the mouse; the size which just fits my hand, the responsiveness, and the rubber side grips. It also has a scroll wheel with just the right kind of tread. In my experience, it is important to make sure you don't use an optical mouse on a shiny surface as it seems to confuse them and this one is no different, but used on a matt surface, a blotter or even a taped-down sheet of typing paper it tracks beautifully.