Mad Catz PixArt Optical Sensor Module for Mad Catz R.A.T. PRO X Ultimate Gaming Mouse (MCB4372300X2/50/1) True 5000 DPI: Provides genuine data and 100% accurate tracking, without interpolation or firmware tricks Rotational Angle Adjustment: Twisting a mouse while moving your hand horizontally will slightly angle the onscreen response, Now you can alter the X and Y axes' alignment to compensate Angle Snapping: Helps you draw straight lines in image editing programs, Prefer to use a computer mouse with input that's genuine and uncorrected! Simply disable this feature Great for eSports: Whether your competitive PC video games are MMO, RTS, MOBA or FPS, R,A,T, PRO X gaming mouse is an ideal LAN tournament partner Hot-Swappable: Interchangeable modules let you employ the latest laser and optical sensors for your gaming mouse, Swap for a different sensor as technology and games advance