This illustration shows an older generation floppy drive cable.
The floppy drive data cable shown above allows a desktop computer to have two floppy drives connected to one controller. Because floppy drives do not have a master and slave configuration like hard drives do, the drives are defined by the cable select mode, which can be identified by looking for a twist in the cable. The end with the twist in the cable (which also has a red mark on pin 1) must be attached to the floppy drive; the other end connects to the floppy disk connector on the computer's motherboard. A standard floppy drive connector contains 34-pins or holes that connect up with the pins soldered into a 3.5" floppy drive.
When connected internally within the computer newer generation floppy drive cables provide a less cluttered design, resulting in improved airflow within the computer tower which helps lower the temperature of the system unit.