Single Connection Attach

Single Connection Attach

(hardware)(SCA, "Single Connector Attachment") A non-standardtype of SCSI connector, used mostly by OEMs, which carriesboth power and data on one 80-pin connector. SCA SCSI drivestend to be cheaper but use with standard SCSI cables requiresan adaptor and external termination.

http://pcmech.com/show/harddrive/152/.