- DB50 Male to HP50 (Half Pitch 50) Male
DB50 Male - Used for early scsi applications such as older Sun Sparcstations. This SCSI connector was
also used by DEC, DG and HP. The DB50 connector
has 50-pins arranged in three rows one on top of the other. The top row has 17 pins,
the middle row has 16 pins and the lower row has 17 pins.
Half Pitch 50 Male (Micro DB50 Male) - Used for scsi-2 applications: scanner, removable storage drive, controller, external
cdr/cdrw. The Micro DB50 connector has 50-pins arranged in two rows one on top of
the other. The top row has 25 pins and the lower row has 25 pins. Most 8-bit SCSI FAST
(up to 10 Mbytes/sec) computers and host adapters use this 50-pin High-Density connector.
Commonly used on Apples and Mac, and some older Sun 8-bit workstations. This connector is seen increased use on Scanners
and Iomega Zip Drives.
- DB50 to SCSI 2
- SCSI 2 - This standard was introduced in 1989 and gave rise to the Fast SCSI and Wide SCSI variants.
Fast SCSI doubled the maximum transfer rate to 10 MB/s and Wide SCSI doubled the bus width
to 16 bits on top of that (to reach 20 MB/s). However, these improvements came at the
minor cost of a reduced maximum cable length to 3 meters. SCSI-2 also specified a 32-bit
version of Wide SCSI, which used 2 16-bit cables per bus; this was largely ignored by SCSI
device makers because it was expensive and unnecessary, and was officially retired in