The Magsafe connector on Apple laptops has pogo pins on the cable, plus a magnet to hold them on. I've had machines of all 3 generations. They have mostly been

The Magsafe connector on Apple laptops has pogo pins on the cable, plus a magnet to hold them on. I've had machines of all 3 generations. They have mostly been reliable, controlled for the number of cycles. But I have seen the laptop get worn down, and the pins eventually became unreliable on old laptops. I don't know how that holds up against USB or the previous weird barrel jack thing they used. Magsafe is far more visible than the others.