What about if I cut two IDE cables and solder them together to make four connectors?You won’t get an IDE cable with 4 connectors. IDE is two devices (master/slave) per channel, so three connectors maximum. Either use the CF as your C: or D: and just mount it to a spare PCI bracket. Alternatively use a GoTek. Both are methods I use to transfer files to my 9x and DOS PCs. Though I also have an NT4 file server on a sandboxed network for larger transfers.