[M] Cooler Master MasterMouse Pro L Gaming Mouse Review
 

Since the most recent Cooler Master product series is all about customization (as we have also seen with the MasterKeys Pro L or the MasterNotepal Maker), the MasterMouse Pro L allows the user to switch the top covers in order to match their grip preference, while the side panels can be switched on-the-fly since they are kept fixed with magnetic force. The proven Avago PMW3360 optical sensor allows DPI setup up to 12000 DPI in increments of 100, while the RGB lighting adds another layer of customization.

http://www.madshrimps.be/articles/article/1000956/