i am not 100% sure the portable had termination power out of the external scsi port.

but the 34 to 50 pin adaptor does have the option to provide termination power.

both the new SCSI to SD and the new SCSI to CF do have the ability to run from the BUS,  termination power!!! from the external port.

The power supply has been reworked to be much more efficient, and will allow the new SCSI2SD to run on the terminator power alone. In many cases there will be no need for the power cable.

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and from ARTMIX on ebay