Dupont Jumper cable connectors. It is a kit of 620 pieces with various connectors from 1x1 pin to 2x6 pin. It also has many terminals and flat header pins. Made of high quality plastic and metal, durable in use. This kit comes with the most common dupont pin mounts in addition to male and female crimp pins. Works great with all your standard and breadboard style pin connectors and sockets.