BeebSCSI VFS Adapter
It's a small board with a 20-way header at the bottom for fitting where the Master AIV SCSI connector goes, and a 34-way header at the top for fitting the BeebSCSI board. Also, the internal Master 128 bus can provide power, so this is passed through via the the 3-way lead to the BeebSCSI, so that external power supply isn't required.
