Abstract: A power connector for mounting on a circuit board is provided. The power connector includes a case and several sets of pins. A set of pins includes several pins. Each one of one set of pins includes an embedded end, a median portion, and a distal end, where the embedded end protrudes from one side of the case, the median portion is angled from the embedded end; and the distal end is angled from the media portion and fixed to the circuit board. A part of the power connector case projects outside an edge of the circuit board.

Abstract: A probe for testing electronic properties of a circuit board by contacting with a weld bead on the circuit board is provided. The probe includes a main body. The main body includes an end surface, a receiving portion defined on the center of the end surface, and four positioning slots communicating with the receiving portion.

Abstract: A mounting apparatus that can be used to selectively mount a first type of data storage device or a second type of data storage device includes a bracket, and a circuit board mounted to the bracket. The bracket includes a rear board defining an opening. The circuit board includes a first side surface, and a second side surface opposite to the first side surface. A port protrudes from the second side surface, to extend through the opening to be exposed out of the bracket. A first connector or a second connector is selectively set on the first side surface of the circuit board, to be electrically connected to the port and the first type of data storage device or the second type of data storage device.

Abstract: A probe for testing electronic properties of a circuit board by contacting with a weld bead on the circuit board is provided. The probe includes a main body. The main body includes an end surface, a receiving portion defined on the center of the end surface, and four positioning slots communicating with the receiving portion.

Abstract: A power control circuit of a universal serial bus (USB) includes a USB interface, a north bridge chipset and a current control circuit. The USB interface has a power pin and a plurality of data pins. The north bridge chipset has a state pin and a plurality of signal pins connected to the data pins of the USB interface respectively. The current control circuit is connected between the power pin of the USB interface and the state pin of the north bridge chipset, the north bridge chipset controls the state of the current control circuit and further controls the output power at the power pin of the USB interface. The power control circuit can offer different output powers in accordance with different external devices.

Abstract: A power control circuit of a universal serial bus (USB) includes a USB interface, a north bridge chipset and a current control circuit. The USB interface has a power pin and a plurality of data pins. The north bridge chipset has a state pin and a plurality of signal pins connected to the data pins of the USB interface respectively. The current control circuit is connected between the power pin of the USB interface and the state pin of the north bridge chipset, the north bridge chipset controls the state of the current control circuit and further controls the output power at the power pin of the USB interface. The power control circuit can offer different output powers in accordance with different external devices.