Micro USB 3-B extender cable

I've been trying to find a short Micro USB3-B extension cable, something around 7cm long although we could go longer & 'lose' the excess cable in our product housing. The cable need to have a plug at one end & socket at the other end, ideally the socket would be able to be mounted to the inner face of a panel. I've tried a variety of companies but none have the plug/socket combination. The one that I did find turned out to be a discontinued product.

Can anyone suggest where else I can look?