I think you'd be better off with a cable that has 9 & 25 pin connectors at the both ends.
That doesn't make sense technically beseen
I got a 25 to 25 null modem with a 25 to 9 pin converter and an usb to serial converter working nicely with AmigaExplorer, so I can't see why a 9 to 9 pin null modem with a 25 to 9 pin converter wouldn't work
