6502 CPU refurbished. 2Mhz 40 pin Dip package. 8-Bit Microprocessor. Used in many Atari Arcade game boards such as Centipede, Qbert sound boards and others. Since these are refurbished and tested by us there could be many different brands and models but they are all 2Mhz or higher, R6502AP, G65SC02P-2 and many others.