The Tech Report posted a review on the Cooler Master MasterMouse MM531
A quote from the article:
I used to know a guy who hated Mercedes cars because they didn't have names. Instead, Mercedes simply gives its vehicles identifiers like E300, SL550, or AMG GLE43. I imagine that guy probably wouldn't like Cooler Master's newest mouse, either. It's simply called the MM531.Cooler Master MasterMouse MM531 Review
OK, technically it's the MasterMouse MM531. You might think that MM stands for MasterMouse, but you'd apparently be as wrong as I was. Fortunately, Cooler Master refers to the mouse primarily as the MM531, so that's what we're going to use too.
You've probably already divined this from the picture above, but this is a by-the-numbers seven-button gaming mouse. It features RGB LED lighting, an ergonomic right-handed shape, and not much else. Like the Cooler Master CK552 keyboard that I just reviewed, there really aren't any gimmicks here. We don't get any adjustable weights or interchangeable side panels, or really anything beyond the essentials.