Mad Catz R.A.T. PRO X MCB4371800P6/02/1 1 x Wheel Wired Laser Ultimate Gaming Mouse with Philips PLN2037 Twin-eye Laser Sensor Module for PC Gaming Mice - Newegg.com
Mad Catz The Authentic R.A.T. PRO X3 wired Gaming Mouse - 16000DPI - 3 Scroll Wheel Ring Options – With extra accessories - On-board memory for 10 user profiles - Carbon Fiber Thumb Rests, Black : Everything Else - Amazon.com