"...The primary differences between what we saw at Computex this summer and the final MorphaX are that there’s a new version of the switches--called “EG MSS (Modular Switch Structure”--and the colors of the mouse chassis are different. For the switches, instead of gray (lightest), orange (medium), and purple (heaviest), Epic Gear dropped the gray; you can choose between EG Orange (Medium) or EG Purple (Pro). Both are made by Omron. The exterior of the mouse is now gray or white with red accents, as opposed to the black-and-red prototype design.
You can also swap out what Epic Gear calls the EG MSC (Modular Sensor Cartridge). Basically, you get two sensor modules with the MorphaX: a 12,000 DPI IR LED sensor version and an 8,200 DPI laser model. It’s quite a simple matter to remove one and pop in the other." by Seth Colaner on Jan 11, 2017