This is an EMDP1 EPROM plug and it is currently a work in progress.
The EMDP1 EPROM 128K-512K Plug is used to program 27C010 (128K×8), 27C020 (256K×16), and 27C040 (5122K×8) EPROM's.
The following revisions of the EPROM 128K-512K plug are listed below: