This is an ISA 56K Well modem. It works perfect on Win 98. It is for Win 95 as well, and (i believe it should work on Win ME, but i have'nt tested it.) Any other platforms i am not sure. Also i have included the User Manual in PDF format. It includes the installation for both the internal, and external modems for this model. It has good illustrations for jumper settings, Plug and Play as well as non Plug and Play. Manual and Drivers are in one Zip file together.