Bought this for the M570 that I have and the new M575 that I bought. The M570 fits just fine. The M575 not so much... The M575 extends a bit beyond the front of the case by the buttons, the bulge for the trackball does not fit into the cutout for it, and the tail of the M575 is just barely over the rear of the case. Trying to fit the M575 into the case results in finding out that the area for the ball to fit into the top of the case is in the wrong place. The M570 fits just about perfectly. No issues. Since I have both I guess Ill keep it and look for a different solution for the M575. I was hoping to take the M575 on trips in order to be able to use the Bluetooth connectivity with a computer or iPad. However a different case will be needed.

The case is almost perfect. It is exactly what I was looking for to protect my MX Ergo when I travel for work (which is a lot). Unfortunately, I have the MX Ergo that has the additional wedge for increased angle and, unfortunately, this case will not accommodate the wedge. All-in-all, a great case, but it does not fit all MX Ergo (which I found out after the return period passed).

Perfect case for my MX Ergo. It fits snugly and the exterior feels hard enough that I am not worried to carry my mouse in my backpack while I travel. The zipper feels like it is good quality and I havent had any issues with the zipper separating or snagging when opening or closing. Definitely a solid purchase. I would say if youre traveling as I do, I purchased this cable to plug into my laptop for charging. It is a short cable that tucks in perfectly to the case under the mouse for storage. https://www.amazon.com/gp/product/B0744BKDRD/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1

Like many others, I was worried/hesitant that this case wouldnt be able to hold my Logitech MX Ergo Plus. I went ahead and pulled the trigger on this purchase. Now while I agree with many others that it wouldve been very nice/helpful if the case was just a tad bit deeper, so as to hold the MX Ergo AND the base plate that comes with the Plus model (or just an all-around another case, specific for the Ergo Plus), I WAS relieved when I was able to find a way to store my mouse AND base plate during travels. For me, I put the base plate in the zippered part of the inside of the case. Thats good enough for me, given the options we MX Ergo Plus holders have. That being said, until an alternative is presented that DOES fit the mouse + base plate, all in one (w/o having to disassemble it, which only takes 1 second), this is our best alternative. Id recommend this case, at this time, to anyone looking for a nice case for their Logitech MX Ergo - Plus or not.

Nice case but listing said it came with extras. There were no extras but its a good case for my trackball.

when traveling. Mouse fits nicely inside and keeps it safe when having to travel on business.

Everything fits in case. Case is solid.

This fits the Logitech MX Ergo Wireless Trackball Mouse Adjustable Ergonomic Design perfect. I also lay the charging cable on the bottom and place the mouse on top and I’m still able to zip it close!

I travel quite a bit with my beloved trackball. I really feel like I have responsibility to go out into the world and let them know what they dont know, the joys of trackballs. Im often met with quizzical looks and bewilderment, people struggling to determine what manner of device I possess. Upon knowing, they find it incomprehensible that such a device could be functional. its a heavy burden, to be sure, educating these poor lost souls. Nevertheless, I take it on willingly. But if Im going to travel with it, how am I to protect it from the horrifying buffet of hazards along the way? I often ride a motorcycle, it gets banged or crushed in the luggage. Heavens me, what to do? I have to get this device to the public so they, too, can buy one and live fuller lives. A soft case isnt going to stop it from being crushed! What you say?!? You have a hard case with a soft interior?!? How is that even possible! Anyway, long story short, Im saving lives out there, and this hard travel case for my Logitech M570 supports me in that noble goal of trackball evangelizing. Please, anyone reading this with a mouse in your hand. Stop it! Theres so much more for you in this world!

Perfect security companion for the Logitech Ergo MX mouse. No issues at all, fit is perfect, soft interior protects well. It would be nice to have a dedicated place to store the USB dongle, but that in no way detracts from quality or compatibility. Maybe just an idea for a future version.