Some of the older products like the first gen Airport Express look to have obvious shielded ports based on various metal tabs inside the port. But the newer products with ethernet ports I have just have two metal ball dots on either sides on the inside of the port. Does anyone know? Or know of any technical reference document that will say. I’m positive AppleCare help will have no clue what I’m talking about.

Some of the products from recent years have this FCC Compliance Statement in the information documents that hints of grounded ports:

> This product was tested for FCC compliance under conditions that included the use of Apple peripheral devices and Apple shielded cables and connectors between system components. It is important that you use Apple peripheral devices and shielded cables and connectors between system components to reduce the possibility of causing interference to radios, television sets, and other electronic devices. You can obtain Apple peripheral devices and the proper shielded cables and connectors through an Apple- authorized dealer. For non-Apple peripheral devices, contact the manufacturer or dealer for assistance.

However the most recent products from the last couple years do not have this verbiage anymore.

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