IEEE-1394, also known as Firewire or iLink, is a versatile, high-speed, and low-cost method of interconnecting a variety of computer peripherals and consumer electronics devices. This firewire cable is used to connect certain devices such as camcorder, DV recorders, digital cameras, etc to a PC. These devices usually require a specific connection, either 4P, 6P. Be sure and know which one your device calls for before placing your order.