The cable tester is a beautiful black circular PCB ... and exposed pads to test some of the conductors with a digital multimeter! It may not be necessary for all of us, but one thing is clear ...

Ethernet cable testers are dime a dozen, but none of them are as elegant and multimeter-friendly as this tester from our Hackaday.io regular, [Bharbour]. An Ethernet cable has 8 wires, and the 9 ...