Abstract: A terminal installed in one terminal slot at a substrate of a CPU connector for receiving a pin of a CPU mounted on the CPU connector, the terminal having three side wings for positioning in the terminal slot in the substrate of the CPU connector to stop terminal against vibration, two supporting arms, and three guide portions for guiding the pin of the CPU into the space defined between the supporting arms, enabling the pin of the CPU to be firmly retained between a raised portion at one supporting arm and a recessed guide face at one guide portion at the other supporting arm.