Industrial Micro Systems - 64K Dynamic RAM
This was one of the last new designs of 64K DRAM boards for the S-100 Bus.  It used  only a single row or high density dynamic RAM chips.

The board was finished in 1983 towards the end of the era.  Unfortunately I cannot locate a manual for this board.  If you have one or a .pdf file I will be pleased to place it here for others.  Note IMS did also make another 64K Dynamic RAM board (Model 464) using 16K Dynamic RAM chips.
 
The manual for that board can be obtained here.

Other IMS S-100 Boards
16K RAM   32K RAM    64K DRAM    80186 CPU    FDC 400    FDC 930    HDC    IO Board    Z80 CPU  
8K RAM   4 Line Serial     CPZ 4800   LANS100    CPS-Q6A   CPS-MX   CPX-BMX   QIC Tape Controller  Other Boards