Kensington Expert Trackball Mouse (K64325) – Black Silver, Compact Design
Original price was: $94.99.$69.87Current price is: $69.87.
Kensington Expert Trackball Mouse (K64325) features a comfortable ergonomic design, precision tracking, and customizable buttons for efficient navigation. Ideal for workspace optimization.
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Elevate your precision with the Kensington K64325 trackball, featuring a large 55mm ball design and advanced Diamond Eye optical tracking for exceptional cursor control. Experience effortless navigation through the patented scroll ring, allowing you to scan up and down pages with unparalleled ease.
Designed with comfort in mind, the detachable ergonomic wrist rest provides essential support for your hand and wrist, perfect for extended use. The ambidextrous design caters to both left and right-handed users, making this trackball a versatile choice for everyone.
Customize your experience with the innovative 4-button design, adjustable scroll speed, and cursor speed through KensingtonKonnect software (Note: Windows ARM-based computers currently unsupported). While ChromeOS users can access basic HID functions, full customization is not available; please stay tuned for updates on compatibility.
Reliability is key with the wired USB-A connection, complemented by a wireless option using 802.11abg, 2.4 GHz Radio Frequency technology. The trackball’s compact dimensions of 9.75 x 3.5 x 0.1 inches and lightweight of 11.8 ounces make it an ideal addition to any workspace.
Manufactured by Kensington, the K64325 model is built to last, ensuring your productivity and comfort are always at the forefront. Transform your computing experience with this expertly engineered trackball, delivering precision and control designed for modern users.
| Wireless Type | 802.11abg, 2.4 GHz Radio Frequency |
|---|---|
| Number of USB 2.0 Ports | 1 |
| Brand | Kensington |
| Series | K64325 |
| Item model number | 64325 |
| Hardware Platform | PC |
| Operating System | Windows 7, Windows 10 |
| Item Weight | 11.8 ounces |
| Product Dimensions | 9.75 x 3.5 x 0.1 inches |
| Item Dimensions LxWxH | 9.75 x 3.5 x 0.1 inches |
| Color | Black Silver |
| Number of Processors | 1 |
| Computer Memory Type | DDR3 SDRAM |
| Power Source | Corded Electric |
| Voltage | 1 Volts |
| Batteries | 1 12V batteries required. (included) |
| Manufacturer | Kensington |
| Language | English |
| Country of Origin | China |
| Is Discontinued By Manufacturer | No |
| Date First Available | July 7, 2004 |
9293 reviews for Kensington Expert Trackball Mouse (K64325) – Black Silver, Compact Design
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Chuckie –
Initially had some software problems which is fixed with updates, now it works without any issues. I tried all sorts of trackballs and found the larger the ‘ball’ the better, and this is certainly the biggest in the market I can find. I tried thumb trackballs, but they 1. sores out my thumb joint fast and 2. impossible to clean as the balls are ‘locked’ in the socket (at least when I was using the Logi Trackball mouse). I prefer the trackball because I move it with my middle three fingers instead of the thumb, the movement is shared, and also requires far less movement on my fingers than if I use the thumb alone. The tracking works wonderfully well (after the software update), and I can scroll up and down pages easily with my ring finger. All in all, after 20 years of trackball use (used Logitech Trackman the most prior to this), this is definitely the best in terms of accuracy, ergonomy, functionality that I’ve come across. Highly recommended.
DuneTiger –
A trackball is nothing I would have considered in the past as most of my PC time is used for gaming and being able to do work has always just been a “bonus” of the platform. However, over the course of the wonderful year of 2020, I had to find solutions to working from home and purchased not just one, but two trackballs. I first started with Logitech’s M570 (wireless) and followed it up a couple of months later with the Kensington Expert Wireless. Chances are that if you’re seriously considering transitioning to a trackball, you are looking at exactly these two models or their wired siblings.
Both solved a very simple problem of making the most of confined space. For my gaming and personal PC, I have a typical desk setup with a brick of a gaming mouse, but for the work laptop I lugged home with me, the idea was that it was a temporary thing and I’d be back in the office with a full desk in no time. Three quarters of a year later and the work machine is growing roots in an old TV table. I managed for a very long time as I was quite comfortable with simply using the built-in trackpad, but when they replaced my machine with a new one, I could no longer work without wanting to throw it out the window. The ‘brilliant’ minds that designed the new trackpad clearly never used one as they removed the physical buttons that bisected the pad and made the pad itself one giant button that would only right click if you used the very bottom right corner. So now I needed a mouse, but TV trays don’t have the runway for effective mouse use. Enter the trackball. Since trackballs stay put, they can sit comfortably in a small space and you still have full use of your cursor.
The second thing both trackballs solved was the right-click issue. While the M570 has more traditional placement of buttons like a regular mouse, the Kensington Expert (herein “Expert”) has four fairly large buttons that can be tapped easily regardless of what hand position you take. Since the laptop’s trackpad cut the right-click distance by 2/3rds and I live and die by context menus, I needed that functionality without feeling the need to break equipment.
The above issues are solved by pretty much any trackball device available in the market today, so what it really comes down to aside from general reliability and longevity is preference. First off, while the M570 seems sturdy enough, the Expert feels like a tank. It has a fairly large footprint compared to the relatively mouse-sized M570, but the Expert also has a much larger ball (maybe three times bigger?) and is heavier and kept in place with rubber feet. As mentioned above, it has four large programmable buttons surrounding the trackball and a rubbery ridged wheel that provides you with your scrolling (compared to Kensington’s Slimblade which has you twisting the ball in the socket to scroll instead). The Expert uses the bottom left button (by default) for left click and the bottom right for right click. Since the ball is finger operated as opposed to thumb-operated M570, you typically use your thumb and pinky to click and right-click respectively. It takes some getting used to, but it really becomes second nature pretty quickly. On top of that, you get two extra programmable button assignments by clicking the top two or the bottom two buttons together.
Despite its wider footprint, the Expert has become my go-to device for work while the M570 has been repurposed for the media machine I have connected to my TV. While it comes with a very sturdy wrist pad to help with your ergonomics, since I sit higher than the Expert instead of level with it, I find it feels better without the pad attached. The larger ball is much easier to manipulate and makes more logistical sense than when using the thumb ball of the M570 and Kensington’s software allows you to set up keyboard hotkeys to assist with accuracy. For example, I can hold the Ctrl key to drastically slow down the cursor (this is completely customizable) so I can select specific things or position the cursor with precision.
For cleaning, the ball is held in the device by gravity only and can be easily lifted out without having to lift the base unit (and it’s kinda fun to do that anyway). Underneath you’ll have access to the sensor as well as the three beads or skates that the ball rides on. I don’t find that the ball is a dust magnet, but normal use will see crud accumulate either on it or on the skates. It’s easy to simply lift the ball and give everything a wipe down.
There’s only two things that I am nitpicky about when it comes to the Expert. First, the ball has a very high profile (exactly half of it is exposed) and while I find it very comfortable to use throughout the day and experience no wrist strain whatsoever, it would have been nice if the ‘horizon’ or the plane of the base unit was a bit higher and the ball sunk a bit lower (things addressed in the Slimblade). The second thing is that this thing puts itself to sleep, which is admittedly a good thing. However, you cannot wake it by rolling the ball or scrolling the wheel; you must click one of the buttons to wake the device from sleep, but the click is actually registered with the OS and is not thrown away. Therefore, unless you’re expressly positioning your cursor safely when you go idle, then you need to be careful on what button you press to wake your device. Neither are dealbreakers, but I really find the registration of the wake input to be weird.
Overall, I am very happy with both of my purchases, but the Expert won out as my day-to-day solution for work. I would never use the device for gaming (at least competitively), but its customizable configuration from speed to keystrokes with Kensington’s lightweight software easily make it a power-user’s device. It may be unintuitive at first, and I was always first in line to mock these devices, but I have completely turned around on them. I think wherever I go in my professional life, the Expert will come with me.
Mirco Marieni –
Avevo già avuto esperienze in passato con le trackball e ultimamente si è ripresentata l’esigenza. Ho trovato questo prodotto di Kensington e dopo averlo acquistato posso dire che sia stata un’ottima scelta. Il prodotto è solido e ben costruito, si collega al pc attraverso la sua chiavetta wireless inclusa oppure in bluetooth. L’ergonomia e la manovrabilità sono ottime, anche la precisione del controllo è all’altezza delle aspettative.
Unico piccolo punto negativo è il design dei tasti che termina a spigolo vivo e a volte, scorrendoci sopra con le dita si tende leggermente a toccarle.
Kml –
Expensive but good
FABIAN ALONSO HERNANDEZ MORALES –
Se conectó de forma fácil y rápida a mi computadora por bluetooth, no tuve necesidad de usar el usb que incluye, es totalmente funcional y preciso, cómodo, de muy buen tamaño (grande) y no extraño mi antiguo mouse ergonómico y mas caro que este, incluye baterías, se apaga cuando no se usa por tiempo prolongado, se prende al dar click y se conecta de inmediato.
Yo ya estaba muy contento cuando voy y bajo la aplicación en la pagina oficial, compatible con mi sistema operativo High Sierra (es antiguo) y configuré todos y cada uno de los botones.
Ahora tengo un trackball totalmente personalizado incluso para cada aplicación pro que uso, encima se ve genial!
Daniel Rice –
This is a fantastic, well built track ball. I could always do with fewer wires on the desk so I love that it’s wireless and I can move it around. Bluetooth also worked great for me though I prefer to use the receiver since I switch computers often. I haven’t used a trackball in a long time but I wanted to try one and I have no regrets about trying this one. I have been using it constantly for the past week and I’ve got to say, I’m very happy with it.
As far as ergonomics go, I’m not sure whether it’s better than my old mouse yet. I haven’t used a track ball in 15-20 years and it uses a different set of muscles depending on how you use it which has led to some muscles getting tired the first day. Being able to use it with my pointer finger, thumb, palm, or combination of digits, however, is a huge plus for me. I can adapt my grip for comfort or accuracy easily. It has a nice pad for my hand which I do like and is comfortable but sometimes prefer not to use as I’m used to having my wrist rest on the desk by itself. 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. The scroll wheel also has a nice feel and I like I can scroll with my thumb, pointer, or middle finger instead of constantly using the same one and wearing it out. After a few days, I raised the sensitivity much higher as I felt the muscle control in my fingers was adapting. It may take a bit longer before I’ve really mastered this. As a side note, I tried a mouse accuracy test online and was able to achieve a slightly lower, but nearly the same, level of accuracy on the trackball vs a regular mouse. Even though I’m not regularly clicking circles on different sides of the screen often, I believe this ball can perform just as well as a regular mouse at any task. I even tried playing some FPS games just for the heck of it and it was fine, but I think it will take some getting used to before I prefer it.
The hardware itself is beautiful. I love how it looks like HAL or a robot from Portal or something. The ball is a beautiful color. The cradle is rock solid. It goes well with the rest of my black colored accessories.
The only negative for me, was the KensingtonWorks software on macOS Catalina. It was a pain to install due to security settings and required multiple reboots before it would detect the trackball. Even then it didn’t seem to update settings correctly. I should mention, Kensington support was phenomenal. They were available through chat right away and helped me get the software installed and working. Unfortunately I got sick of rebooting/troubleshooting and I ended up using another piece of software called BetterTouchTool that let me really jack up the sensitivity and assign Mission Control to the top buttons, a setup I’m quite happy with. I also turned off mouse acceleration on Mac since that gave it a weird feel I didn’t like. On my Windows machine, the KensingtonWorks software installed just fine, although I have noticed I can’t jack up the sensitivity any higher in KensingtonWorks which I’ve wanted to do after developing finer muscle control in my digits. I’m sure I will find a way when I get around to it.
Overall, if you want a great wireless trackball, this is an excellent choice. You won’t be disappointed.
Dave –
I have written a complete review of this device in its Wireless Version which is no longer manufactured. Its overall design has been well described in these numerous reviews. I would like to address a few of the complaints registered in some of the reviews on this thread, at least IMHO:
1) The bearings on which the ball rests are different, and overall, there is no significant change in build quality which is more than adequate.
2) Initially I also had some difficulty on Win7/64 with Trackball Works 1.04 and 1.01, the European version which tech support recommends when you call in to complain about the former. In my case, this represented some sort of software conflict which was no longer the case when I gave it another try after having had to reformat and reinstall my system for other reasons. Initially, although I could program the trackball without difficulty, it would intermittently hang, or my computer would crash. Since the reinstall, now for about 3 months use, Version 1.04 works absolutely fine with this Expert Mouse, but install the software before connecting the device, as mentioned. Absolutely NONE of the initial problems have recurred. Trackball Works has some problems with complete programming of the Slimblade Trackball version and Kensington is working on it, with a supposed upgrade to the software due in March, at least at the time of this writing.
3) The ergonomic issues raised by some of the reviewers are legitimate, but it depends a great deal on the individual user. I agree that the “wrist rest” supplied is not a very successful solution. Some will prefer the flatter format of the Slimblade, but I don’t think the four buttons work as smoothly as those on the Expert, and are very dependent on where you place your fingers on them, which is not the case with the latter which are nicely designed. At work, I use this trackball for hours on end, now for years, in our radiology department, scrolling through images, and have had absolutely no wrist or finger pain. One of the tricks is to operate the mouse with your hand canted to the right at about a 30 degree angle which helps to obviate more extreme wrist extension. Give your hand and wrist a brief rest by changing position every few minutes which can easily be done automatically during the workflow since you aren’t gripping something. Any pointing device without rest will be a nuisance. For those who are particularly sensitive, place a small bean bag place under the palm of the hand, not the wrist. Since you aren’t spatially moving the unit, it is not intrusive, if you buy a proper sized bag.
4) Complaints about the scroll ring, IMHO, are entirely unjustified. It works very well. I have had no problems with its function on this unit, my previous wireless mouse, or any in our Department at work.
5) Complaints about the ball’s being sticky and insensitive are also groundless, IMHO. You will find slight “newness”, reflected in slight stiffness,when you first use the unit. This will clear promptly, and even more quickly if you just spin the ball for a couple of minutes with moderate downward pressure to break in the interface between the support pins and the ball. Periodically clean the ball with a little soap and water, then alcohol to restore a smooth surface, and repeat the conditioning routine, in an abbreviated form. At the same time, inspect the pins on which the ball rests for accummulated dust and debris, and make sure they’re absolutely clean. Works like a charm.
For those that don’t like the scroll wheel, try the Slimblade where scrolling is done via the ball itself, turned transversely. That works well….it’s just a matter of personal preference. I personally prefer the larger ball on the Expert versus the Slimblade, and the independent scroll wheel. The interface cable on the Slimblade is a little more robust and less prone to kinking if you move the trackball around quite a bit, for example, if you’re also using a graphics tablet on which you seat the trackball. In any case, I don’t think it’s an issue, particularly if you take a bit a care of how you set the mouse down so that it isn’t repetitively stressed with a kink. BTW, I couldn’t find the magnet that one reviewer talked about at the bottom of the receiver for the ball. All that’s there is the optical pickup. BTW, if you use the Intuous 4 Wacom tablet, the RF mouse they supply is greatly improved over previously, and is nicely programmable, except for no control over acceleration which some users may find a distinct negative.
Bottom line: HIGHLY recommended after years of experience using this trackball. Works perfectly well with Win 7/64.
Glenn B. –
I bought this to replace an older one of the same model, that has always (from new) had a crappy scroll ring. I tried everything, lube, taking it apart and cleaning, etc. It just never was smooth and accurate. Something I have read in other reviews of the same product. Not smooth scrolling, rough feeling, inaccurate scroll. etc.
I figured I’d take a chance, since some of the reviews seemed not to mention any of this. I got it, set it up and it’s EXCELLENT! No more rough scroll, inaccurate scroll, or any issues at all….so far. I haver read of connection problems, even wired, but so far, no problems on a 2021 iMac, with Apple M1 silicon.
I have read complaints on the Kensington Works software, especially from some Mac users. I got away from that entirely a while back, using the (paid version) of “Steermouse” . It takes a bit of a learning curve, but you can set nearly anything you want, and it just WORKS.
I hope this review helps any other long time Expert Trackball users, although I may have just gotten lucky??! This device does have a rocky track record of reliability and correct operation, so your mileage may vary. But I will say, once set up and working properly, it is a very nice pointing device, if you are into trackballs. I also have a CST L-trak, but keep coming back to the Kensington. It’s that scroll wheel…when it works right!