Abstract: In one embodiment, the inductor includes: a substrate, arranged with multiple lower conducting layers, a magnetic core, disposed on the substrate, and an insulating cover, covering the substrate and wrapping the magnetic core. Multiple upper conducting layers are arranged on a surface of the insulating cover. The upper conducting layers and the lower conducting layers are alternately connected to form at least one coil winding around the magnetic core. Two ends of the coil are respectively used to conduct external electrical signals.

Abstract: A card edge connector includes an insulating body having a central slot formed at a longitudinal direction thereof. A pair of locking devices is installed at both opposite distal ends of the insulator body and each locking device has a metal unit. The metal unit is formed by bending the first arm and the second arm upwards by the first arm. The second arm is placed outside the first arm and has a stop portion for limiting over-movement of the first arm. More space and material is saved because of its simple structure, convenient production, easy assembly and disassembly so as to enhance production efficiency.