Yamaha ASIB1 / XS532 SCSI expansion card for EX5 etc. 

This was taken from an EX5 keyboard. As far as I know it is officially known as the "ASIB1" board, but the markings on the circuit board say "XS532". I'm not sure whether there are two different names for the part or two different parts, but please do your research and make sure that if you are using it for something other than an EX5 it is the correct part for you.

These are pretty rare and somewhat specialist so I'm listing this as Buy It Now rather than an auction. Feel free to make an offer!