These days, most people use their Ethernet port to plug their router into their computer ... off and turning on devices without multiple cables running like you would need with an AC-brick-powered ...
Chances are you’ve come across an Ethernet cable where the small plastic tab that holds the plug in place has broken off. We have a crimper on hand and usually just throw on a new RJ45 connector ...
In a similar vein, we’ll have used power over Ethernet, or PoE, to power devices such as webcams. Buy a PoE router or switch, plug in a cable, and away you go! But what lies behind PoE ...