9121 9123 9114 98700 98710 I can tell you the first 3 all used to work, but I do not have keyboards and monitors here to test now. I know nothing about the last 2, except they say MAD BUS on the back. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 830-370-3239 cell sales at elecplus.com AOL IM elcpls