Wikipedia's page on USB describes a "hermaphroditic AB receptacle". I cannot find any information on it – No pictures, specs or anything. Is this a single connector? Or have I missed the point?
Electronic – a hermaphroditic USB AB receptacle
connectorusb
Related Solutions
This is called a UC-E6 cable. It looks to be non-standard enough that I can't find anywhere that sells the connectors, but it is pretty easy to find the cable.
Looks to me to be a "163" obsolete-standard line cord.
You may want to consider removing the existing socket and hard-wiring a locale-appropriate line cord to the instrument (at your own risk) - make sure that the 'line' goes to the fused path!
Another (perhaps safer) option would be to leave the socket in place (cutting off the wires coming from it), drilling a hole in the chassis and feeding the replacement line cord through a grommet/strain relief that's fitted in the hole.
Best Answer
It's about this connector.