Abstract: A data sharing network device includes a portable storage portion with network function, which has a network file management system, via which an electronic apparatus coupled to the portable storage portion manages the access of files between a memory unit of the portable storage portion with network function and a remote network host. The portable storage portion with network function includes an interface portion, a network unit for linking with the remote network host, the memory unit and a processing unit for controlling data access between the memory unit and the electronic apparatus via the interface portion, between the memory unit and a remote network host, and between the memory unit and another memory unit of another portable storage portion with network function in which data can be stored on the remote network host, on the memory unit, or on the electronic device.

Abstract: A portable storage device with network function includes a network file management system, via which an electronic apparatus coupled to the portable storage device manages the access of files between a memory unit of the portable storage device and a remote network host. Therefore, the portable storage device with network function is more convenient for use.

Abstract: A method of using portable network-attached storage includes the steps of (1) providing a user with a portable network-attached storage; (2) coupling the portable network-attached storage into an electronic apparatus, so that the portable network-attached storage is linked with a remote network host; (3) performing a storage unit in the remote network storage host to form a virtual disk via a network unit of the portable network-attached storage; and (4) performing file processing by the electronic apparatus for a file in the virtual disk or the portable network-attached storage. In this manner, the easy-carry portable network-attached storage may be linked with a virtual disk in the remote network host via an electronic apparatus, allowing a user to advantageously utilize the large capacity of the network hard disk, and making the portable network-attached storage more practical for use.

Abstract: A portable storage device with network function includes a network file management system, via which an electronic apparatus coupled to the portable storage device manages the access of files between a memory unit of the portable storage device and a remote network host. Therefore, the portable storage device with network function is more convenient for use.