LOGITECH INC 200033-00B DZL6QBP7-3F ISA 8 BIT MOUSE ADAPTER BOARD.
Plus Development Corp Hardcard II XL 105 16 bit AT bus (ISA/EISA) interface
- be gentle manhandling this, it has actual (hard drive 105MB) disk platters in it.
http://www.erinat.com/DSMuseum/1990s/1992HardCard/index.html
If it has a silver coloured sticker on the (Hardcard) chip, that may have markings
relating to settings for the Hardcard, for the 8 pin block on its right.
If you disconnect the Mitsubishi drive, do you still get one hard drive detected?
If yes, it's probably the Plus HardCard. Below is about Plus's earlier drives,
but the information should be applicable to your Plus drive.
http://books.google.com.au/books?id=jy8EAAAAM … epage&q&f=false
https://books.google.com.au/books?id=Zi8EAAAA … disk%22&f=false
Below is quoted directly off the containing box for a Hardcard II XL 105
that recently sold on ebay...
"Compatible with...
IBM PC AT, PS/2 Model 30/286, Compaq deskPro 386, and all other
fully compatible 80286, 80386 and 80486 computer systems.
Operating Systems;
The manufacturers version of DOS, v3.0 and later,
OS/2: v1.1 and v1.2
SCO Xenix 286 System V, v2.3.2 and later
SCO Unix 386 System V, v2.0 and later
IBM PC LAN, v1.3
Windows Environments;
MS Windows 3.0
Quarterdeck DESQview, v2.26 and later
Network Operating Systems;
Novell Advanced and SFT NetWare 286, v2.10 and later
OS/2 LAN Manager
3Com 3+, v1.3.1 and later."
..."AIRLOCK (feature) automatically locks heads in a non-data zone."
Recent statement by member QBiN; "My old 286 used one of those "Hardcards"
... I believe it was a 70MB Quantum (Plus Development Corp owner) hard drive+
controller+BIOS built into a single full-length ISA card."
