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SCSI Cable and Adaptor Guide
Unsure of the cable you need? Take a look at this list with both pictures and helpful captions

50 Pin Header
IDC50 Female
idc50 male connector
IDC50 Male

IDC 50 pin female, mates to IDC50 male "header", used on SCSI-1, SCSI-2, Ultra SCSI "narrow" etc. All internal 50-conductor "8-bit" SCSI uses these cconnectors.


CN50

Centronics 50
CN50 Male
cn50 female scsi connector
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

DB25 male scsi connector
DB25 Male

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

db25 female scsi connector
DB25 Female


HD50

hd50 male scsi connector
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 scsi connector
HD50 Female


HD68

hd68 male scsi connector
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 scsi connector
HD68 Female

VHDCI

vhdci male scsi connector
VHDCI male

VHDCI 0.8mm HPCN68 male- Sometimes called SCSI-5. Very popular in RAID cards.

VHDCI female scsi connector
VHDCI female


DB50


DB50 Male

SCSI-1
Usually used on old Sun Sparcstations.

db50_female
DB50 Female


DB37

db37
Male DB37

SCSI-1

db37_female
Female DB37