I have about 10 TTL GPS boards left. If anyone wants to buy the lot of
them I'll take $80 for all 10 shipped CONUS USPS. They have SMB 5vdc
active connectors. I can send a PDF of the interface and docs on request.

Singles are $12 shipped USPS CONUS

Paypal prefered. I will also take a check with your callsign on it or a
USPS MO.
Write off list only.