When used with a USB-C charger (not included), you can get up to 60W of high-speed charging for all of your USB-C devices, including laptops, tablets, and smartphones. Support 40MB/S data transmission, upward compatibility with QC4.0, downward compatibility with QC2.0, and support for QC3.0 fast charge and USB 2.0 standard interface Low loss, more stable transmission, thicker copper-plated wire core, and quick charging that doesn't harm your device SR design that is reinforced to stop breakage