Abstract: A grounding sheet having a body and elastic conduction sheets is provided. The elastic conduction sheet has a first elastic sheet and a second elastic sheet, each of the first elastic sheet and the second elastic sheet a closed terminal, a floating arm, a connection arm, at least one free terminal and at least one end terminal, wherein the closed terminal is connected to the body of the grounding sheet, the connection arm is connected to the closed terminal and the floating arm, the free terminal is connected to the floating arm, and the end terminal is connected to the free terminal and corresponds to the floating arm. The first elastic sheet has the merely one free terminal, and the second elastic sheet has the two free terminals and the two end terminals. The connector using the same can quickly conduct noise outside.

Abstract: A fastener is made of a plastic material by integrated injection molding and has a locking portion and an installation portion, wherein the locking portion has two arm levers extended and arranged at a predetermined interval, and at least a concave buckle corresponding to another is respectively protruded from inner sides of the two arm levers. The installation portion has a cap connected to the two arm levers. A channel passing between the two arm levers is disposed to the cap, and at least an elastic hook plate is disposed at a bottom of the cap. While in use, the locking portion is stretched into the fastener insertion hole preset at the side of the notch of the board insertion slot. The elastic hook plate at the bottom of the cap is mutually buckled with the buckle hole of an inner wall of the fastener insertion hole.

Abstract: A top latching assembly includes a main body, a lug disposed on at least one side of the main body, a first elastic arm extended from an external side of the main body for carrying the lug, and a second elastic arm extended from an external side of the main body and disposed opposite to the top of the first elastic arm, and each second elastic arm can interfere with each first elastic arm to be apart from or proximate to the main body, such that the top latching assembly can latch a corresponding circuit board into the connector, so as to enhance the reliability of an electric connection between the connector and the circuit board.