GadKo IDE IDC 40 Internal Ribbon Cable, 5 Connectors, 2 Device, 48 inch GadKo is the only authorized dealer of GadKo branded products. IDE cables are designed to connect internal devices in your computer to the motherboard. The devices would include; CD-ROMs; Zip drives; hard drives; DVD-ROMs; CD burners; etc. IDE slots on the motherboard can only support up to 2 devices. Some IDE cables have more connectors. Those cables are for cases or situations where you need to have a longer cable or to have some variety and options to place the devices where you choose.