Beginning Fall, 2024, small and medium-sized electronics sold in EU countries, must uniformly adopt USB Type-C charging specification. M31’s USB PHY solutions, including USB4, USB3.2Gen2/Gen1, and USB2.0, fully support Type-C applications. Furthermore, in line with market trends, the USB-IF Association has introduced Alt Mode on USB Type-C, allowing USB3.2 and DisplayPort to coexist on the USB Type-C port. With further expansion of functionality, the all-new USB4 PHY is specifically developed to support the USB4 connectivity standard. It not only boosts data transfer rates to 40Gbps but also introduces Tunneling transmission mode, allowing USB4 to achieve time-division multiplexing of different protocols through Adapter Layer conversion, including USB3.2, DisplayPort, and PCI Express (PCIe). USB4 devices can simultaneously perform USB data transmission, video/audio transmission, PCIe protocol transmission, and charging on the same connection line, while remaining compatible with previous USB generations.