Ahhh, the trackball. Once the darlings of ergonomics-minded computer users, people often assume they’ve gone the way of those weird kneeling chairs from the 1980s. But like many other relics of the era—Eddie Murphy’s career, spandex, and Bon Jovi come to mind—the trackball is still alive. But trackballs have actually gotten better with time. Logitech’s M570 trackball combines the best aspects of the device you already know, with some new technology to make it even easier to use.