Upon August 2014, USB world has marched in the era of USB-C, formally known as USB Type-C, is a 24-pin USB connector system, which is distinguished by its two-fold rotationally-symmetrical connector. And when type-c was introduced to the vaping device, it meant a lot more, especially when Eleaf launched its first vape mod built in USB Type-C for charging:
iStick NOWOS in Oct. 2018, that really makes quite noises in the vaping market.