This cable is backward compatible with old IDE motherboard, IDE harddisc and peripheral. The flat cable has 80 wires. The 40 additional conductors are grounded for faster data transmission, and to avoid data lose. The connector is 0.1" pitch 2x20 standard IDE connector.		ULTRA ATA / IDE 18" - 3 CONNECTORS SPECIFICATIONS PRODUCT NAME Ultra ATA / IDE 18" - 3 connectors PRODUCT CODE C203-018 CONNECTORS IDC connector 0.1" pitch 2x20 female CABLE 80 wires flat cable (UL 2678) Length - 18 inches (457 mm)

C203-018: Ultra ATA / IDE ribbon cable 18". 80 conductors for faster data transmission and to prevent data lose. Three 2x20 connectors, to connect master and slave hard discs / peripherals.