Just get a ePMP horn type radio and any other device in the solar system with an ethernet port (say a F180 or F300 or whatever) take a real good look at the pins in the port. You will see that on all the other devices the pins run from the bottom front of the port to the top back of the port like / only more of an angle. The pins in the ePMP horn type radios do not do that, instead look like they do in the picture, a little arch or curl.
All ePMP horn type radios made in the last year and half or so have the curled pins while none of the other radios or, as far as I have ever run across, any other device in the known solar system (if the mars rover has any Ethernet ports, I'm betting they don't have curled pins in them).
At first ePMP insisted the pins were a defect and to RMA them " Cambium did not make a conscious change and we have strict control over the design." yet here we are.