Wireless Type | 802.11abg, 2.4 GHz Radio Frequency |
---|---|
Number of USB 2.0 Ports | 1 |
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Kensington Expert Trackball Mouse (K64325), Black Silver, 5"W x 5-3/4"D x 2-1/2"H
Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
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- Ship it!
Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
Learn more about free returns.- Go to your orders and start the return
- Select the return method
- Ship it!
Purchase options and add-ons
Brand | Kensington |
Color | Black Silver |
Connectivity Technology | Wi-Fi |
Special Feature | Ergonomic Design |
Movement Detection Technology | Optical |
About this item
- Large 55mm ball design and Diamond Eye optical tracking for precise cursor control; Patented scroll ring lets you scan up and down pages with ease
- Detachable, ergonomic wrist rest supports hand and wrist for improved comfort; Ambidextrous design
- Customizable 4-button design, scroll speed and cursor speed via KensingtonWorks software
- ChromeOS user can get HID functions for a trackball but will not be able to customize their device through KensingtonWorks.
- Wired USB-A connection for reliable connectivity
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PRODUCT CERTIFICATION (1)
Carbon Neutral Certified by SCS Global Services means the product’s carbon emissions have been measured and reduced, with any remaining emissions offset.
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From the manufacturer
Comfort no mouse can match.
Navigate with greater comfort and precision while saving valuable desktop space with the Kensington Expert Mouse Optical USB Trackball. Its optical technology delivers precise cursor control with the touch of a finger while the two-button design provides an interface that’s familiar to mouse users.
- KensingtonWorks lets you customize all 4 buttons, set cursor speed
- DiamondEye optical tracking technology for premium cursor control and accuracy
- Patented Scroll Ring lets you scan up and down pages with ease
- Large 55mm ball is designed as a perfect sphere to provide exceptional precision
- Detachable wrist rest supports hand and wrist for ergonomic comfort
- Reliable wired USB connection
- Kensington worked directly with Microsoft to provide professional-level solutions that look as good as they function, so you can work like a pro
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This Item Kensington Expert Trackball Mouse (K64325), Black Silver, 5"W x 5-3/4"D x 2-1/2"H | Recommendations | dummy | dummy | dummy | dummy | |
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Price | -27% $69.41$69.41 List: $94.99 | $29.99$29.99 | $75.00$75.00 | $123.12$123.12 | $32.99$32.99 | -14% $29.99$29.99 List: $34.88 |
Delivery | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 | — | Get it as soon as Sunday, Mar 31 | Get it as soon as Sunday, Mar 31 |
Customer Ratings | ||||||
Ergonomic | 4.3 | 4.3 | — | 4.4 | 4.5 | 4.3 |
For gaming | 3.2 | 3.6 | — | 1.9 | 3.2 | 3.5 |
Accuracy | 4.2 | 4.6 | — | — | 4.7 | 4.1 |
Comfort | — | 4.2 | — | 4.4 | 4.5 | 4.3 |
Sold By | Amazon.com | ProtoArc | Electronic Freedom | G & W | Nulea Direct | ELECOM Japan Direct US |
connectivity tech | Wi-Fi | Bluetooth, 2.4G wireless | Wired | Bluetooth, USB | Bluetooth | USB, Wired |
hand orientation | Ambidextrous | Right | Ambidextrous | Right, Ambidextrous | Right | Right |
power source | — | Rechargeable Trackball Mouse | Corded Electric | Battery Powered | Battery Powered | Battery Powered |
tracking method | Optical | Trackball | Trackball, Optical | Trackball | Trackball | Optical |
range | feet | 10 meters | 5 meters | 1.5 meters | 10 meters | 5 meters |
button quantity | 3 | 3 | 4 | 4 | 6 | 5 |
hardware platform | PC | PC, Mac, Linux | PC | PC, Mac, Linux | PC, Mac | PC, Mac |
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Product information
Technical Details
Brand | Kensington |
---|---|
Series | K64325 |
Item model number | 64325 |
Hardware Platform | PC |
Operating System | Windows 7, Windows 10 |
Item Weight | 11.8 ounces |
Product Dimensions | 3.5 x 9.75 x 9.75 inches |
Item Dimensions LxWxH | 3.5 x 9.75 x 9.75 inches |
Color | Black Silver |
Number of Processors | 1 |
Computer Memory Type | DDR3 SDRAM |
Voltage | 1 Volts |
Manufacturer | Kensington |
Language | English |
ASIN | B00009KH63 |
Country of Origin | China |
Is Discontinued By Manufacturer | No |
Date First Available | July 7, 2004 |
Additional Information
Customer Reviews |
4.3 out of 5 stars |
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Best Sellers Rank | #7 in Computer Trackballs |
Warranty & Support
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Review of Kensington Wireless Trackball Mouse
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Product Description
The Expert Mouse Wired Trackball is the ultimate productivity enhancer that makes working at the desk quicker, more accurate and extremely comfortable for your hand and wrist. Featuring DiamondEye technology, the trackball uses optical tracking to precisely follow small flecks embedded in the large 55mm ball to provide smooth, accurate cursor control. The four buttons are customizable using our highly intuitive KensingtonWorks software, while our award winning Scroll Ring lets you quickly scan up and down web pages and large documents. Add it all up and you get exceptional comfort and ease-of-use that has set the industry standard for more than 20 years.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the comfort and ease of use of the computer input device. For example, they mention that the ergonomics are quite good, the ball feels great under the fingers, and the software is pretty easy to use. That said, opinions are mixed on quality, performance, buttons, scroll wheel, size, and movement.
AI-generated from the text of customer reviews
Customers like the comfort of the computer input device. They mention that it's extremely comfortable to use, the ergonomics are quite good, and the ball feels great under the fingers. The palm rest provides good support, and it does not stress the wrist at all. Some say that the ball itself feels smooth already.
"...It's fast and does not stress my wrist at all because I control it with my fingers...." Read more
"...I never get sore from the track ball, and I have been computing for a long time (please don't ask)...." Read more
"...ball but based on my seating height and arm reach to me the palm rest gives good support but feels a bit thick, raising my wrist considerably higher..." Read more
"...My hand didn't know how to properly use it and my wrist would get sore. After just a few days of heavy use, it became waaay more comfortable to use...." Read more
Customers like the ease of use of the computer input device. They mention that the software in general is pretty easy to use, the scroll wheel on the top of the ball is easy to click, and the buttons feel nice and convenient. The setup on their Mac was very straight forward, and manipulating the trackball takes minimal effort. It's also easier on the joints and faster than using a traditional mouse, and maintenance is a snap.
"...Maintenance is a snap...." Read more
"...for the trackball is easily downloaded for the device and pretty easy to use although it is not overly intuitive.3...." Read more
"...which gives the ball a different feel, initially a bit awkward and less familiar but time will tell how my brain chooses to adapt to the new design..." Read more
"...The software in general is pretty easy to use, and has enough functionality to feel nicely customizable without being so in-depth that only an..." Read more
Customers are mixed about the quality of the computer input device. Some mention it's well built and flawless, while others say it'll break sooner due to cheap plastic parts. The wheel is bad and practically unusable, and the wire had started to become flaky.
"...a new Expert Mouse in the exact same model because it's the best computer trackball I've ever used--and I've been using the various versions of this..." Read more
"...Has many interesting functions and possibilities. Will know more as I work to better use the device...." Read more
"...Trackballs are pretty expensive, it seems like they either fall into the overpriced and crappy category, or the overpriced and good category...." Read more
"...In general these are pretty tough units. I have dropped mine off the chair arm many times and it has been ok...." Read more
Customers are mixed about the performance of the computer input device. Some mention that it works fairly well, while others say that it sounds gritty and cheap. The functionality and performance are next-level, while the ergonomic shape is well thought out. However, some customers say that the kludges are not perfectly executed, and the mouse just doesn't work. It's terribly unreliable and has unpredictable results.
"UPDATE: MAY 2017I continue to LOVE this trackball. It's smooth, functional and lets me do everything I need in my graphic design/marketing..." Read more
"...My first impressions are that the quality control of the unit has diminished...." Read more
"...6. Have not really used upper two buttons, yet.7. Scroll ring works well. Don’t have clicking noise that other reviewers have reported.8...." Read more
"...Oh, and the scroll wheel DOES stay working when switching between 2 computers with the cheap iogear 2-port VGA/USB/Sound KVM switch so I'm just as..." Read more
Customers are mixed about the buttons on the computer input device. Some mention that the buttons are fantastic, customizable, and put in a convenient location. Others say that the flat surface and non-ergonomic buttons are not comfortable. Some customers also mention that one of the buttons didn't click quite right and the scroll ring sounded. Additionally, the buttons take different pressures depending on where you hit them and may stop working.
"...4. Left Click/lower left button works pretty well. I seem to have it pretty well figured. Using my thumb for this button...." Read more
"...Also, the buttons take different pressures depending on where you hit them. This unit doesn't behave that way...." Read more
"...The weight is good, the buttons are clicky and responsive, and the general body doesn't feel cheap...." Read more
"...height and arm reach to me the palm rest gives good support but feels a bit thick, raising my wrist considerably higher than I think I'd prefer so..." Read more
Customers are mixed about the scroll wheel. Some mention it's great, while others say that it causes issues while scrolling.
"...The scroll ring sometimes and my fingers don't jive causing me top hit one of the corner buttons...." Read more
"...The scroll ring is also easily turned with a finger or two, or thumb. From the top or either side. It's way better than those thumbwheels...." Read more
"...loose and gritty; it slides and bumps around and the amount it scrolls is also unreliable. It feels like it's rubbing at other parts inside...." Read more
"...for me to make an informed decision about, and the scroll ring sounded like a welcomed addition as that's the main reason the bottom left button on..." Read more
Customers are mixed about the size of the computer input device. Some love the size, saying it's large enough to fit their entire wrist. However, others say that it'd take up a lot of desk space.
"...The trackball takes up very little desk room. It's only 5" x 6" and no mouse pad is required...." Read more
"...:: Yes, it's got a pretty big footprint - it's about 5.5" by 9" with the included stiff-foam wrist rest..." Read more
"...3. Large trackball seems very good particularly located in the mid position...." Read more
"...Cons:While the trackball is sturdy, it is also large. I wear X-large gloves, so my hands aren't' small...." Read more
Customers are mixed about the movement of the computer input device. Some mention that it moves easily, while others say that it gets rough and hard. Some say that precise movements are not easy and that it feels like it's resisting their movement.
"...New users may notice the ball may move a tad sluggishly when they first unpack the trackball, but this quickly goes away with a few minutes of use...." Read more
"...I also really like that the trackball stays in place and I don’t have to keep picking up my mouse to move it around...." Read more
"...For whomever has complained about the stiff, hard ball movement, as a regular daily user of an original Kensington Expert Mouse that I've had since..." Read more
"...Smaller movements are are also a breeze. The dedicated scroll wheel is also very handy...." Read more
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I continue to LOVE this trackball. It's smooth, functional and lets me do everything I need in my graphic design/marketing studio. Of the 4 in the shop, one has developed some gravelly sound in the scroll ring and so it will need to be replaced, but the others are all working just fine years after purchase. I've used every version of this 4-button trackball since 1989, and it's been universally wonderful. Disregard the drama queens to who bitch about this product. They either got a defective unit or messed it up themselves, because I've had 29 years of personal experience that proves that Kensington has a SUPERIOR product in this trackball.
NOTE TO ANYONE WHOSE TRACKBALL ISN'T WORKING PROPERLY: You have a defective unit! Tell Amazon or Kensington about it and arrange to have them send you a replacement unit. In any run of mass-produced products you'll always get a small few that are defective. Call customer support and get it replaced.
UPDATE: OCT/2016:
I LOVE this trackball (even though they call it the Expert Mouse). I've used my current model for over 4 years without a single problem. It's fast and does not stress my wrist at all because I control it with my fingers. Every couple of months I take the ball out and turn the unit upside down to dump out any dust and hair that have accumulated in the ball cavity. It's a good idea to take a tissue and gently wipe off the 3 sensor points so they're not clogged with dirt and skin oils. Maintenance is a snap. If your hands/fingers are really oily you might have to occasionally take out the ball and wash it with soap and water, but that's about it. I work for 8-10 hours every single day at my computer with Photoshop, InDesign, Illustrator and Muse (all from Adobe Systems) and it lets me be very fast. I set the Trackballworks software so that the cursor flies around the screen with the flick of my fingers. I simply wouldn't work without it. The big ball rolls easily and is essential to my workflow.;
DEC 1/2014:
The Kensington Expert Mouse is actually not a mouse at all, but a trackball that is well-made and very durable. I've used Kensington's Turbo Mouse, an earlier version of this product, starting in 1989 and its various iterations ever since. It connects via USB 2 to either Mac or Windows, and replaces the standard mouse that comes with your computer. Software drivers for Mac and Windows are available on Kensington's site.
Why should you replace your mouse with this product? The Expert Mouse has a large ball about the size of a pool ball that you move with your fingertips. You can rocket the cursor quickly to any part of your monitor with a simple flick of your fingers, instead of having to move your whole arm with a regular mouse. I often work 8-10 hours a day at my computer and a 30" monitor doing graphic design work, and the Expert Mouse prevents stress on my arm and hand. For right handers, left-clicking is done with your thumb on the lower left button. Right-clicking is done with your little finger on the lower right button. However, you can program any of the 4 buttons to do any of these two actions, and custom-program other actions with the remaining 2 buttons. Speaking frankly, I LOVE this trackball, as it keeps me productive and speeds my work immensely.
New users may notice the ball may move a tad sluggishly when they first unpack the trackball, but this quickly goes away with a few minutes of use. The speed of the cursor can be easily adjusted with the supplied driver/software to your liking. The trackball takes up very little desk room. It's only 5" x 6" and no mouse pad is required.
Around the ball is a scroll ring that allows you to quickly scroll around your documents and web pages in a flash. I could never go back to a mouse. The Kensington Expert Mouse is absolutely the best trackball product I've ever used, and I've been using it or its direct ancestors for 23 years! It may take a day or two to get used to it, but when you do you'll never want to use a regular mouse again. It's really that good.
Cleaning is easy. I recommend that about once a month that you simply pick up the unit, hold your hand over the ball and turn it over. The ball will fall into your hand. Tap gently on the bottom of the unit to release dust, food particles, hair, dead skin cells and other gunk that's built up. You may have to use a tissue to wipe out the ball cavity and polish up the ball itself to remove any grime or skin oils from your hand. You can even wash the ball in mild, soapy water if you have excessively oily fingers. It's advisable to use a tissue to remove the gunk that builds up over the 3 tiny balls inside the ball cavity, as these can build up with dirt, fuzz and grime over time. It usually takes only a few seconds to do this every month or so, so it's not a bother. Your trackball should last you for many years of lightning-fast, smooth cursor action if you do this. My current Expert Mouse is over 5 years old and going strong, without a single problem in that time.
UPDATE: JUNE 10, 2013
These trackballs last a LONG time! I'm buying a new Kensington Expert Mouse to replace one I bought over 4 years ago. I must have had something on my fingers that has caused the scroll ring rubber to start breaking down and get sticky (possibly bug spray). I'm putting in my order for a new Expert Mouse in the exact same model because it's the best computer trackball I've ever used--and I've been using the various versions of this product since 1990! There's just no other trackball that works as well and is so durable. I use mine with a Mac Pro at work and an iMac at home, and sometimes even take it along on the road to use on my MacBook Pro 17" when I travel. Simply the best! I give it another 5 stars.
New Thought, 31dec23: Dragging and dropping, for instance, an email in MS Outlook to a folder can be challenging. I have not figured out the best method. Am looking for any ideas...
28dec23: Overall, I like the trackball and am tentatively at about 60/40 thinking to keep the device. Has many interesting functions and possibilities. Will know more as I work to better use the device. I definitely need more practice with the trackball because my long-term use of a regular mouse allows me to be pretty fast with the mouse.
Early Pro’s:
1. Bluetooth connecting is really easy.
2. Kensington Works software for the trackball is easily downloaded for the device and pretty easy to use although it is not overly intuitive.
3. Large trackball seems very good particularly located in the mid position. Is good for me with some tremors and a shaky thumb compared with a side trackball. The middle trackball is far superior, for me, to the side mounted track balls. With practice, I am sure that I can rapidly move the cursor via the trackball.
4. Left Click/lower left button works pretty well. I seem to have it pretty well figured. Using my thumb for this button.
5. Right Click/lower right button not so handy as the Left Click button. Learning. May do better with it after more practice.
6. Have not really used upper two buttons, yet.
7. Scroll ring works well. Don’t have clicking noise that other reviewers have reported.
8. Don’t know how the battery life will be; we shall see.
9. Don’t yet know how the wrist rest will be although it seems okay with this short time review.
Early Concerns:
1. Will take considerable practice for me which I am willing to do to become proficient with the trackball.
2. Have already learned to be very careful not to simultaneously touch the trackball while trying to scroll. Is easy to do! Result is my inadvertent action takes me some crazy place I did not want to go!
Top reviews from other countries
Pros:
Comfortable and ergonomic. My hands haven't gotten tired (or sore) after using it consistently for long periods of time.
Comes with software to remap the actions of the mouse buttons. This is nice since double clicking as a single-click macro feels great.
It's shape let's you always have quick access to 3-buttons when your hand rests in a comfortable position (lower button via the thumb, adjacent lower button via pinky, and upper button via the other longer fingers). Accessing the 4th button requires slight hand re-adjustments but is still relatively easy and comfortable to access.
Cons:
The precision of controlling the mouse pointer via a ball is not the best (I wouldn't recommend using it for 3D modeling, gaming, or drawing), but it gets the job done for desktop work.
Takes some getting-used to the feel of using it. Took me a few weeks to develop the mussel memory to use it seamlessly without having trouble using it and it feeling weird compared to a normal mouse.
The multi-button actions offered by the software is interesting, but I find pressing two buttons at the same time awkward, since you can easily mess up and press one of the buttons first.
Can avoid the following con by maintaining the mouse routinely (isopropyl alcohol + Q-tip works great): If not properly maintained, the ring around the ball gets gunky and sticky, and it makes it so that at times when you move the cursor, the friction spins the scroll wheel slightly and ball movement becomes less smooth, and this can be very annoying when using software that does something unintentional when scrolling (accidently zooming in and out was the most frequent accident from this, when holding control and moving the mouse around in editing tools that require holding control to rotate an object via moving the mouse).
Following con is not the end of the world, since frequent use removes this initial issue, but: the scroll wheel really needs to be worked-in before it is in a comfortable-usable state. When I first got the mouse the scroll wheel felt like it was grinding against something as I spinned it, and I was quite disappointed with the product at first. This disappointment disappeared after a couple months of use.
du pointeur d'écran étant donné que l'avant bras ne bouge pas - par rapport à une souris standard.
Ball size makes it work really well, the size of the buttons is equally enjoyable,.
But...: sensor (Dpi) is slow, very slow, scroll wheel stopped two weeks after purchase.
I wouldn't recommend in this form