Universal player tracking system

A disclosed player tracking unit utilizes a memory arranged to store a plurality of different communication protocols allowing the player tracking unit to communicate with a plurality of different types of gaming machines and a plurality of different types of player tracking servers. The player tracking unit may contain many different types of player tracking peripheral devices such as card readers, key pads, displays, bonus buttons and biometric input mechanisms. The peripheral devices contained in the player tracking unit may be accessible to the master gaming controller on a gaming machine and may be utilized by the master gaming controller for other gaming applications. The player tracking unit may be designed with a standard housing and standard device layout allowing the player tracking unit to fit in many different types of gaming machines with minimal modifications to the gaming machine or the player tracking unit.