This is the absolute best size and shape for the 4.8mm thick Microsoft Surface Duo (see photo) and I've tried a few (all returned) before finding this one. Granted it's 0.2mm taller (it sticks out 0.1mm from each side of the screen) at 5mm thick, but again it's the best I could find. I also have one on my Samsung Galaxy Note20 and it really fits in the case. much better than the round magnetic connector I used before. There's also a 10ft dual cable which I have too and they're great too except they charge slower due to the extra length. (more resistance = slow charging). They also sell 3 end packs which is great if you have a lot of devices that you want to use this way. Great job CinchForce! The only downside to these cables compared to the round ones I've used is very minor: I miss the ability of round cables to bend 90 degrees, so I hope they come out with 90 degree bend cables in the future.