Yamaha CRW2100SX Series Owner's Manual - page 28
Manual is about: External SCSI CD-R/RW Drive
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48
Setup Procedures
19
The CRW2100SX drive requires a D-sub half-pitch 50-pin pin-type
connector. The connector of your SCSI card may vary. You will need to
purchase a SCSI cable with connectors suitable for both your drive and your
SCSI card. The following are the most common types of SCSI connector:
D-sub half-pitch 50-pin pin-type (as found on CRW2100SX)
Half-pitch 50-pin Centronics