Patent ID: 8019923

Claim:
A card adapter to interface between a host and a plurality of memory cards, the card adapter comprising: a first memory card interface configured to be connected to a first memory card, the first memory card being associated with a first file system; a second memory card interface configured to be connected to a second memory card, the second memory card being associated with a second file system; a host interface configured to connect to a host; and a controller operatively interposed between the first and second memory card interfaces and the host interface and configured to control the first memory card interface and the second memory card interface to control connections between each memory card that is connected thereto with the host, wherein the controller is configured to operate in each of two selectable modes, including: a first mode in which the controller is operative to emulate a virtual file system that presents to the host the first file system and the second file system as a unified image; and a second mode in which the controller presents to the host a single one of the first file system of the first memory card connected to the first memory card interface and the second file system of the second memory card connected to the second memory card interface; and a mode switch coupled to the controller and configured to receive a user selection of one of the two selectable modes.