It depends, ones for hard drive are i think, about 40 pins, an less for the floppy IDE cable Desktop hard drives have "40" pin connectors; however, the actual number of pins is 39. There is one pin missing in the upper row, middle. I believe the reason for this is so the ribbon won't be connected upside down, it can only go one way.
Chat with our AI personalities
The IDE/EIDE connector is a 40-pin connector that has been one of the most widely used connectors used on IBM compatible computers. Today, this connector is being replaced by the SATA connector.
The IDE connector has a total of forty pins. The parallel ATA cables usually have a maximum allowable length of only 18 inches.