The SCR stand for Silicon Control Rectifier, it is used in industries because it can handle high values of current and voltage. Read more about Silicon Controlled Rectifier - SCR
MIDI - MIDI/Game port and PDMI Ports Pinouts configurations and Specifications Read more about MIDI - MIDI/Game - PDMI Ports Pinouts
EIDE / ATA - SATA Pinouts configuration and specifications. Read more about EIDE / ATA - SATA
Apple 30 Pin Dock Connector Pin out configuration and specifications. Read more about Apple 30 Pin Dock Connector
OBD-II Car Connector Pin Out specification and configuration, OBD-II to DE9 Cable. Read more about OBD-II Car Connector
USB (Universal Serial Bus) Pin Out Configuration, Voltages Configuration, Speed Specification, Cable size and power specifications Read more about Universal Serial Bus