EXPANDABLE USB MEMORY DEVICE, EXPANSION MEMORY DEVICE CONNECTED TO THE SAME AND EXPANDABLE USB MEMORY SYSTEM

摘要

PURPOSE: An expandable USB memory device and an extended memory device connected to the same are provided to securely fix the extended memory device by allowing the extended memory device to be connected to a wide area of the expandable USB memory device. CONSTITUTION: A first PCB(Printed Circuit Board) has a first side having a first wiring pattern and a second side facing the first side. A semiconductor device is mounted on the first side of the first PCB and is connected to the first wiring pattern. An USB(Universal Serial Bus) terminal(102) is installed on one side of the first PCB and is connected to the first wiring pattern. A fist connection terminal(112) is exposed from the second side of the first PCB, is connected to the first wiring pattern, and is electrically connected to an extended memory device(200).