3.5-inch Drive Bay



There are two types of 3.5-inch drive bays: internal and external. Internal 3.5-inch drive bays hold drives, like hard drives, that do not need to be touched from outside of the computer. External 3.5-inch drive bays hold drives, like floppy drives, that need their disks to be manually inserted from outside of the computer. The picture above shows a Zip drive on the left and a floppy drive on the right. Below is a picture of a hard drive.