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Kensington Expert Trackball Mouse (K64325), Black Silver, 5"W x 5-3/4"D x 2-1/2"H

4.3 4.3 out of 5 stars 8,773 ratings

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Wired
Mouse

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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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

What's in the box

  • Kensington Trackball 4-Button Usb Expert Mouse
  • Detachable Wrist Rest
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    Kensington Expert Trackball Mouse (K64325), Black Silver, 5"W x 5-3/4"D x 2-1/2"H
    Kensington Expert Trackball Mouse (K64325), Black Silver, 5"W x 5-3/4"D x 2-1/2"H
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    Price-27% $69.41
    List:$94.99
    $29.99$75.00$123.12$32.99-14% $29.99
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    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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    Additional Information

    Warranty & Support

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    Product Warranty: For warranty information about this product, please click here. [PDF ]

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    Kensington

    Kensington Expert Trackball Mouse (K64325), Black Silver, 5"W x 5-3/4"D x 2-1/2"H


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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

    4.3 out of 5 stars
    4.3 out of 5
    8,773 global ratings

    Customers 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

    742 customers mention552 positive190 negative

    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

    476 customers mention344 positive132 negative

    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

    1,175 customers mention720 positive455 negative

    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

    750 customers mention466 positive284 negative

    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

    506 customers mention267 positive239 negative

    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

    454 customers mention176 positive278 negative

    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

    361 customers mention183 positive178 negative

    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

    345 customers mention153 positive192 negative

    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

    Five Stars for Fantastic Trackballs and Even Better Service!
    5 Stars
    Five Stars for Fantastic Trackballs and Even Better Service!
    So, I gotta give a shoutout to Kensington for hooking me up with some seriously awesome customer service! I had a real random hiccup with my Expert Wireless Trackball where it completely stopped being detected by all devices as either a Bluetooth or a USB device with the dongle in the host, but these guys handled it like absolute champs.I shot them a message about the issue and bam! They didn't waste any time providing adequate testing guidance, all possible troubleshooting techniques, and ultimately sending me a replacement after all else failed. And let me tell ya, that replacement? It's like it was made for my M2 Max. Connected like a dream, like knew it should, with no fuss whatsoever.But wait, it gets better! This trackball? It's not just a replacement—it's an upgrade. Seriously, the functionality and performance are next-level.As a professional audio engineer and a music major at Berklee College of Music, I've already snagged a couple of Expert Wireless Trackballs and Expert Wired Trackballs from Kensington, and let me tell ya, they never disappoint. Quality stuff right here.If you're on the hunt for a reliable trackball that won't let you down, look no further. Kensington has got you covered without fatigue for the duration of any length of session. Plus, their customer service? Absolutely top-notch.So, big thanks to the Kensington tech support and customer service team for keeping me in the game with their killer products and expert service. You guys rock!
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    Top reviews from the United States

    Reviewed in the United States on December 1, 2011
    Style: WiredPattern Name: MouseVerified Purchase
    15 people found this helpful
    Report
    Reviewed in the United States on December 28, 2023
    Style: WirelessPattern Name: MouseVerified Purchase
    3 people found this helpful
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    Top reviews from other countries

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    Ariadnny
    5.0 out of 5 stars Maravilhoso!
    Reviewed in Brazil on March 20, 2024
    Style: WiredPattern Name: MouseVerified Purchase
    Gamez Gus
    5.0 out of 5 stars Excelente producto
    Reviewed in Mexico on December 30, 2023
    Style: WirelessPattern Name: MouseVerified Purchase
    Patrick
    5.0 out of 5 stars Comfortable and ergonomic. Definitely a must buy for a ergonomic mouse used for desk work.
    Reviewed in Canada on October 21, 2021
    Style: WiredPattern Name: MouseVerified Purchase
    BHLB
    5.0 out of 5 stars Sans problème
    Reviewed in France on March 20, 2024
    Style: WirelessPattern Name: MouseVerified Purchase
    Sr Coconut
    1.0 out of 5 stars Bwaaahhhh
    Reviewed in Belgium on September 28, 2023
    Style: WirelessPattern Name: MouseVerified Purchase
    One person found this helpful
    Report