This card is a replacement for the original Roland MIF-IPC and MIF-IPC-A card, for use by the infamous Roland MPU-401 MIDI adapter. The MPU-401 was an external device which connected to the PC with an interface cable & card. The MPU-401 was designed to work with many systems, so it is common to find the unit separated from its card. This card will allow it to work in your ISA-based PC and is supported by many early DOS games, and early sequencing software, etc.
This version is labeled MIF-IPC-B as it features IBM XT Slot 8 compatibility as well as extended port/IRQ range over the original versions and compatibility with the XT(MIF-IPC) or AT(MIF-IPC-A) card. A standard 25 pin straight-through cable will be needed to connect the interface to the MPU-401. Please note, this not a replacement for MPU-IPC or MPU-IPC-T, etc. It is only meant to work with the original MPU-401.
Purchase is for PCB only. Parts will need to be purchased separately, and assembled. The link below contains a full bill of materials to complete the build, as well as the instructions on how to set the board jumpers.
Lo-tech MIF-IPC-B reference page: wiki page.