A connecting part of a storage device including a body, a plurality of connecting terminals, and a grounding member is provided. The body has a first end and a second end opposite to each other. The connecting terminals are disposed at the first end and the second end respectively. The grounding member is assembled to the body. At least a part of the grounding member extends from one of the first and the second ends to another one of the first and the second ends. The connecting part of the storage device is grounded by contacting the grounding member to a connector of an external device when the connecting part of the storage device is connected to the connector of the external device.