A serial advanced technology attachment (SATA) interface storage device. The SATA interface storage device can be used in cooperation with an electrical apparatus and comprises a substrate, a chip set, a SATA interface and a shell. The substrate has a first surface, a second surface corresponding to the first surface and a plurality of connectors between the first surface and the second surface. The chip set is disposed on the first surface. The SATA interface is disposed on the second surface and is electrically connected to the chip set via a part of the connectors so that the electrical apparatus may be electrically connected to the chip set via the SATA interface to access the chip set. The shell has a width and a thickness and defines a receiving space for receiving the substrate, the chip set and the SATA interface, where the width and the thickness conform to a micro-memory card standard.