TN.273.SCSI Termination - This Technical Note discusses SCSI termination on the Macintosh, including the new rules of termination which are necessary with the advent of the high-speed Macintosh IIfx. Changes since April 1990. Fixed a typographical error which represented µF as mFWhy Is The Terminator After Sarah Connor? One of the features of the Macintosh IIfx is a new SCSI chip that provides SCSI data transfer rates up to three megabytes per second, faster than any existing Macintosh model. To achieve these transfer rates, components on the Macintosh IIfx logic board are smaller and faster, requiring different termination configurations than previous Macintosh models.