SCSI IDC50 Male to External SCSI-II HPDB50-F Latch
This is a IDC-50 male jack on one side and a HDDB50 connector for SCSI II cables on the other. This is designed to take the SCSI-II port out of the system. Used a lot on 2940UW cards to allow additional SCSI II device both inside and outside the system. Also popular for SCSI cards with no external port.

