The components are around $40+ the shipping of the boards from China (which is around $20 to get them in a reasonable amount of time). Would there be any interest in pulling together a group buy?
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There are a couple things I would change/do differently...
- Use through-hole for the 50-pin SCSI header. For some reason surface mount headers are much more pricey.
- Create a daughter board to stack on top of this board, to allow SCSI chaining. Right now, this thing has to be the last device in the chain.