Abstract: A connector assembly includes a first connector, at least one second connector, and a plurality of cables. The first connector includes a plurality of conducting member. A plurality of cables connects the first connector and the at least one second connector. Each of the plurality of cables includes a metal conductor and an insulator. An extending direction of the plurality of cables is substantially perpendicular to a plugging direction of the first connector. Each of the plurality of conduction blades pierces each insulator of the plurality of cables and conducts with the metal conductor of the plurality of cables.

Abstract: A monitored and high-efficiency power supply for a motherboard includes an AC-to-DC conversion circuit, a control circuit, a standby circuit, a main output circuit, a standby output circuit. The AC-to-DC conversion circuit converts an AC source voltage to a DC voltage. When the power supply is in a standby state, the standby circuit is enabled but when the power supply is in a normal working state, the standby circuit is disabled, and the control circuit is enabled to control only the main voltage output to the motherboard. A method for supplying power to a motherboard is also provided.

Abstract: A connector assembly includes an input/output device, a motherboard, at least one first cable, a first connector connected to the motherboard, a signal increasing connector located between the at least one first USB input/output connector and the first connector, and a power supply cable connected to the signal increasing connector and the motherboard The an input/output device includes at least one first USB input/output connector. The signal increasing connector divides the at least one cable into a first portion and a second portion. The first portion is connected to the signal increasing connector and the at least one first USB input/output connector, and the second portion is connected to the signal increasing connector and the first connector.

Abstract: A connector assembly includes an input/output device, a motherboard, at least one first cable, a first connector connected to the motherboard, a signal increasing connector located between the at least one first USB input/output connector and the first connector, and a power supply cable connected to the signal increasing connector and the motherboard The an input/output device includes at least one first USB input/output connector. The signal increasing connector divides the at least one cable into a first portion and a second portion. The first portion is connected to the signal increasing connector and the at least one first USB input/output connector, and the second portion is connected to the signal increasing connector and the first connector.

Abstract: A system is used to measure a fan rotational speed. The system includes a main controller, a first socket coupled to the linear fan, a second socket connected to the main controller, and an optical fiber amplifier connected to the main controller. A PWM (pulse width module) fan is coupled to the second socket, the PWM fan sends a first rotational speed signal, which represent a rotation speed of the PWM fan, to the main controller via the second socket. The optical fiber amplifier is capable of radiating light on fan blades of the linear fan, and sensing light reflected by the fan blades to count a rotational speed of the linear fan, and generating a second rotational speed signal which represents a rotational speed of the linear fan. The optical fiber amplifier sends the second rotational speed signal to the main controller.

Abstract: A system is used to measure a fan rotational speed. The system includes a main controller, a first socket coupled to the linear fan, a second socket connected to the main controller, and an optical fiber amplifier connected to the main controller. A PWM (pulse width module) fan is coupled to the second socket, the PWM fan sends a first rotational speed signal, which represent a rotation speed of the PWM fan, to the main controller via the second socket. The optical fiber amplifier is capable of radiating light on fan blades of the linear fan, and sensing light reflected by the fan blades to count a rotational speed of the linear fan, and generating a second rotational speed signal which represents a rotational speed of the linear fan. The optical fiber amplifier sends the second rotational speed signal to the main controller.