Patent ID: 7822883

Claim:
A memory card system, comprising: an enclosed electronic circuit card, a first set of external electrical contacts located on the circuit card and having a pattern adapted to mate with a first receptacle but not with a second receptacle, a second set of external electrical contacts located on the circuit card and having a pattern adapted to mate with the second receptacle but not with the first receptacle, the first and second sets of contacts being spaced apart across the circuit card, a re-programmable non-volatile memory within the circuit card that is operably connected to transfer data between the memory and outside of the circuit card by signals passing through the first set of contacts with a first signal protocol and through the second set of contacts with a second signal protocol, the first and second signal protocols being different from each other, and a cover carried by the circuit card and manually rotatable between at least first and second positions about an axis extending across the circuit card, the first set of contacts being covered when the cover is in the first position and exposed for insertion into the first mating receptacle when the cover is in the second position.