Back in the day Commodore used round DIN connectors of various pin configurations for the various ports on the computer. This six pin variation is used for the C64 and C128 serial ports to connect things like disk drives and printers.
Fortunately, these connectors are still being manufactured. The difficult part is getting a good quality connector as they all look very similar. Cheap connectors use a hard nickel outer plating which has a fairly high contact resistance.
Our DIN connectors have a silver alloy plating that improves conductivity and the reliability of the connection. It also makes them easier to solder to.
We also have the 7-pin power connector and 8-pin video connector in stock too.
We are happy to be able to offer these quality connectors to you for your vintage Commodore computers.