Answer: IDE Hard Drive
Explanation:
A gray ribbon that encases forty pins is a IDE cable, used to connect IDE devices to the computer.
IDE Cables come in two different variants, 34-pin connector, which is normally connected to floppy disks, and the 40-pin, which is used to connect the Hard Drive and Optical Drives.
There are different pin counts, but mainly you would want to know the 34-pin and 40-pin IDE Cables.
A IDE hard drive is basically the same as a PATA Hard Drive.