I am a mechanical engineer and I am developing a enclosure for one of the electrical setup. It has usb, ethernet and power supply ports. I am unaware how IP rated USB or any other USB port make sure that there is no water ingress inside the port. Any suggestion would be great on how this can be achieved.
Ordinary USB and Ethernet connectors are not IP66 rated.
There are many IP67 and IP68 USB and Ethernet connectors around but I couldn't find one IP66 rated.
Reliable manufacturers of IP66/IP67/IP68 rated USB and Etehernet connectors are, among many others: Molex, TE, Bulgin, Amphenol
You can buy them at your local distributor or at Digikey.com or Mouser.com