CN50 Male

CN50 Female

Centronics C50  sometimes referred to as CN50, Cent50  (External connector on many SCSI-1 and some SCSI-2 Controllers) The controller connector and peripherals connectors should be females, and the cables male.

Most SCSI SLOW (5 Mbyte/sec) computers and host adapters use the Centronics-type 50-pin connector. Also some 8-bit Fast computers and host adapters.

DB25 Male

SCSI-1
Used with the older Macs, Zip drives, and many scanners.

DB25 Female

HD50 Male

Many 8-bit SCSI FAST (up to 10 Mbytes/sec) computers and host adapters use this 50-pin High-Density connector.

Mini D50 “HPDB50” (SCSI-2/SCSI-3 external connector) . The easy way to tell the difference between an HD50 and an HD68 (unless you want to count those tiny little pins) is to measure them. HPDB50 is about 1 3/8” (36mm) , and the HPDB68 is about 1 7/8” (47mm)

HD50 Female

HD68 Male

All FAST/WIDE (16-bit) SCSI-3 computers and host adapters plus old DEC single-ended SCSI use this 68-pin High Density connector.

MiniD68 “HPDB68” (Ultra wide SCSI-3/ Ultra2 LVD SCSI/ wide Differential SCSI both internal and external) The internal and external connectors appear to be different, but they are the same basic connector. The easy way to tell the difference between an HD50 and an HD68 (unless you want to count those tiny little pins) is to measure them. HD50 is about 1 3/8” (36mm) , and the HD68 is about 1 7/8” (47mm).

HD68 Female

Male DB37

SCSI-1

Female DB37