The MX Ergo S is my favorite trackball. My annoyance with mine is its use of the USB Micro plug; it was the only thing left on my desktop that had it. I am happy to report they have finally upgraded it to the USB-C, plus you can get it with an extra wedge to raise the trackball a little higher off the desktop. I just ordered one. Be careful when you order one. The older model is still available at a clearance price, so make sure you purchase the one that uses the USB-C plug. The detachable wedge looks like a useful addition to what is already the best trackball made.
