USB Connector Pinouts - hobbytronics USB Connector Pinouts. Low Speed (1.5 Mbit per second) that is mostly used for Human Input Devices (HID) such as keyboards, mice, joysticks and often the buttons on higher speed devices such as printers or scanners; Full Speed (12 Mbit per second) which is widely supported by USB hubs. Hi-Speed (480 Mbit per second).. USB pinout, wiring and how it works! - Electroschematics USB – How it Works. The USB is a plug-and-play interface between the PC and the peripherals. The main advantage of USB is that the device can be plugged in or plugged out without the need of restarting the PC USB is the short form of Universal Serial Bus, a standard port that helps to connect computer peripherals like scanner, printer,..