I - Floppy Disk Drive Connector       Show Part Numbers       Hide Part Numbers 2519040, 2519041, 2520284, 2520285, 2520321, 2520500, 2520501, 2520576, 2520852, 2520901, 2520914, 2521130, 2521155, 2521191 This is where the floppy disk drive cable connects to the motherboard. Pin 1 orientation is to the left in the graphic and toward the bottom of the case when mounted in a tower case. The slot is keyed and only accepts a keyed cable in the proper orientation.