Four independent ports, do not interfere with each other, expand more devices, plug and play, stylish appearance, reasonable port layout, easy plugging and unplugging, no interference. Without external power supply, it can easily drive two mobile hard drives and simultaneously use keyboard, mouse, U disk and other devices Keyboard and mouse connection, sensitive to use, without delay or lag, equipped with high-performance main control chip, more sensitive data control feedback Stable transmission without interrupted calls, fast and stable thick wire core, Galvanized thick wire, plus aluminum foil and other multi-layer shielding, data transmission is faster and more stable. The cable body is made of thickened PVC, which can be folded and stored repeatedly every day without fear of breaking Mobile phones/tablets must support OTG function, and USB models must be used with OTG adapters (OTG adapters are not included)