What is the bottom port on an Xbox controller for?

The Xbox controller is one of the most popular gamepads on the market, but it's got a weird port on the bottom you may not ...
Just Auto

Continental gets patent grant for an electronic assembly with a flexibly resilient material covering the input-output port

Continental has been granted a patent for an electronic assembly that includes a housing with an opening, an input-output port for connecting electronic components to input-output devices, and a ...
EDN

Measure a DUT’s input power using a directional coupler and power sensor

A directional coupler is used to sample a small amount of input signal power for measurement purposes. Port 1 is the input port; port 2 is the output port; port 3 is the coupled port; port 4 is the ...