This is a multifunction USB-C converter. It expands 3xUSB3.0 female, 1xHDMI, 1xType-C, 1xRJ45 (Gigabit), 1xTF card slot, and 1xSD card slot Simple design with stable performance. It is the best choice for your MacBook and MacBook Pro for work and entertainment Charge & work at the same time, adopt PD3.0 fast charging technology to keep the computer/mobile phone fully charged at all times Easily enjoy 4K HD large screen, HDMI supports 4K*2K high-definition resolution, compatible with TV projector display and other equipment Fast heat dissipation, stable performance, using aluminum alloy material with anodizing process Specifications: Input: USB-C male Output: 3xUSB3.0 female; 1xHDMI; 1xRJ45 (Gigabit); 1xTF card slot; 1xSD card slot; 1xType-C USB specification: USB 3.0, transfer rate up to 5Gbps, and backward compatible with USB2.0/1.1 HDMI interface: support resolution up to 4K×2K/30Hz Network interface: automatically adapt to 10/100/1000M Ethernet Power supply interface: USB C female, support PD protocol power supply Support memory card: Micro SD(TF)/SD/MMC, TF and SD card can simultaneously use Support System: Mac OS/Windows and others Body size: 105x50x16mm Cable length: 15cm