Abstract: A universal serial bus (USB) connector includes a main body and a conductive member. The main body is fastened to an enclosure. The main body includes at least one USB interface. The conductive member includes an engaging portion for engaging with the main body and abutting against each housing of the at least one USB interface, and a connection tab abutting against the enclosure.

Abstract: A universal serial bus (USB) connector includes a main body and a conductive member. The main body is fastened to an enclosure. The main body includes at least one USB interface. The conductive member includes an engaging portion for engaging with the main body and abutting against each housing of the at least one USB interface, and a connection tab abutting against the enclosure.

Abstract: An exemplary computer chassis includes a casing and a lid covering the casing. The casing includes a bottom wall, a first sidewall and second sidewall extending from the bottom wall, the first sidewall and the second sidewall each extending a curved engaging ledge. The lid includes a main body and baffles extending from the main body. The baffles fittedly engage with corresponding engaging ledges of the first sidewall and the second sidewall of the casing.

Abstract: A power switch is used for protection against static electricity and includes a main body, a metal pin and a protection section. The metal pin and the protection section are positioned on the same side of the main body. The main body and the protection section are made of insulating material. The metal pin passes through the protection section and is partially received within the protection section, and the other part of the metal pin is exposed.

Abstract: A printed circuit board includes signal layers, ground layers, and a power layer, which are superposed. A closed trace is set along edges of each of the signal layers and the power layers. A number of vias are defined in each trace at intervals. Each via extends through the signal layers, the ground layers, and the power layer. Each via is electrically connected to the traces of the signal layers and the power layer, and electrically connected to the ground layers.

Abstract: An exemplary computer chassis includes a casing and a lid covering the casing. The casing includes a bottom wall, a first sidewall and second sidewall extending from the bottom wall, the first sidewall and the second sidewall each extending a curved engaging ledge. The lid includes a main body and baffles extending from the main body. The baffles fittedly engage with corresponding engaging ledges of the first sidewall and the second sidewall of the casing.

Abstract: An electromagnetic interference (EMI) detection apparatus includes a telescopic antenna and a detecting element. The telescopic antenna includes an antenna body and an adapter portion. The antenna body is rotatably mounted on the adapter portion. The adapter portion includes a connecting portion electrically connected to the antenna body. The detecting element includes a main body, a cable, and a probe. The main body includes a matching portion. The matching portion is electrically connected to the connecting portion of the adapter portion. A first terminal of the cable is electrically connected to the matching portion. A second terminal of the cable is electrically connected to the probe. This EMI detecting apparatus ,cooperating with hybrid biconical/log periodic antenna and spectrum analyzer, can detect the root cause of EMI conveniently.

Abstract: A printed circuit board includes signal layers, ground layers, and a power layer, which are superposed. A closed trace is set along edges of each of the signal layers and the power layers. A number of vias are defined in each trace at intervals. Each via extends through the signal layers, the ground layers, and the power layer. Each via is electrically connected to the traces of the signal layers and the power layer, and electrically connected to the ground layers.