Patent ID: 6981068

Claim:
An electronic system utilizing a host device and removable memory, comprising: a first electronic circuit card having first and second electrical connectors thereon and including a controller function therein that is operable to control a memory when the memory is connected to the second connector and to interface with the host when the host is connected to the first connector, a second electronic circuit card without the controller function and including non-volatile reprogrammable memory therein connected to a third electrical connector that mates with the second electrical connector of the first card for control thereof by the controller function within the first card, a first receptacle within the host that mates with the first electrical connector of the first card, a second receptacle within the host that mates with the third electrical connector of the second card, and the host additionally includes the controller function connected to the second receptacle to control the memory of the second card when the third connector mates with the second receptacle but without the controller function of the host being connected to the first receptacle, whereby the second card containing memory may be connected directly with the host by insertion into the second host receptacle or indirectly by connection with the first card containing the controller function that is in turn inserted into the first host receptacle.