This is a SCSI 50 pin to 80 pin card adapter.
SCSI 68-Pin To IDC 50-Pin Adapter
SCSI HPDB 68 Female to IDC 50 Female F/F Adapter Converter 68 Pin to 50 Pin
Micro SATA Cables™ by Electronic Product Solutions 1A Post Office Square UNIT # I Acton, MA. 01720