neb: A generic reply is "the first one with USB-C, interchangeable plugs for travel, and not no-name on PBTech", it really isn't anything special. It was a j5 but it's not listed any more... sorry an Adam P5, this one. It's a great charger, fits into the palm of my hand, runs my Lenovo no problems, have used it all over the world. Note they don't even mention GaN, but it's a GaN charger. I think it's been superseded by the P7, but PBTech still have the P5.