This thread is about 50 pins drives specifically, and for a reason. I am aware of all the other drive types available and all the adapters available as I have them already. I want to use the hard cards as the designers intended, which means mounting a 50 pin drive on the hard card. A 68 pin drive with adapter works fine with the controller, but doesn't fit 100%, as the adapter will be forced upwards by the cable.
I had a 2091 on which I mounted an 80-pin 4GB drive. I was able to use the cable without issue since the SCA-to-50 adapter was low profile and the 50-pin port was at the top of the drive. This caused no stress on the cable, drive, or connectors.
Other than that, too bad you did not need these drives before I sent all mine to the dump. Sad, too... I put them up for the cost of shipping alone, and no one wanted them.