I've got an old keyboard that I bought a long time ago that I want to use with my current newer Windows computer but obviously the connector is different. It's a Fujitsu Fkb4700 with 5pin din connector. Upon googling I found this XT/AT To USB Converter by tinkerBOY. Will this work?
Those intelligent converters usually work really well although you may find that the keyboard only works in Windows. If it doesn't then there'll be a problem accessing the BIOS and perhaps the recovery/restore options that work outside of Windows.