I have the b.face, and I can tell you the difference between any of the original vs x2. The original ones had PCB masking areas for RGB LEDs to be directly soldered on, and a small breakout PIN set for using wires to solder on a strip of RGB LEDs. In X2, he got rid of the breakout pin set and now has both sets of RGB LEDs soldered directly onto the board. I have the RGB diffuser case and my top case parts are frosted matte acrylic to match the diffuser case and I like it a lot.