Vintage NorthStar Horizon HSIO 4-Port Serial I/O Board, S-100 IMSAI Altair 8251 For Sale

Vintage NorthStar Horizon HSIO 4-Port Serial I/O Board, S-100 IMSAI Altair 8251
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Vintage NorthStar Horizon HSIO 4-Port Serial I/O Board, S-100 IMSAI Altair 8251:
$125.00

Vintage NorthStar Horizon HSIO 4-Port Serial I/O Board for the S-100 bus. This board uses 4 Intel 8251 USARTs. This board was pulled from a working system approximately 20 years ago and placed into storage - it has not been tested since and is therefore being sold "as is". Please offer accordingly. Already supporting a NorthStar system? This would make a great spare!
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