18in IDE ATA/133 Round Internal Cable, 40-Pin Single Drive, Silver, Pin 10 Blocked18in internal IDE cable for connecting a single ATA/133 hard drive or CD/DVD drive to a motherboard IDE header. 40-pin IDC female connectors on both ends, round-cable design, pin 10 blocked for correct orientation. Free 30-day returns -- questions before you buy? Just ask.SpecificationsConnector A: IDE/EIDE/PATA 40-pin femaleConnector B: IDE/EIDE/PATA 40-pin femaleLength: 18 inchesSupports single drive connection, up to ATA/133 (133MBps)Round cable construction, 40 twisted pairsPin 10 blocked for keyed orientationColor: SilverShip weight: 0.31 lbsManufacturer warranty: Limited lifetimeWhy buy from Keep SuppliesFree 30-day returns on every order. Fast handling and shipping. Questions before you buy? Just ask -- we're happy to help.Certified Service-Disabled Veteran-Owned Small Business