1Can support multiple devices, like for Nintendo Switch, etc. Very practical 2Can be connected to U disk, mouse, keyboard, etc. reading card memory card/small memory card function, can support up to 128G 34-in-1 USB-C multi-function docking station hub, compact and easy to carry 4Small size and great workman, easy to store, use and with good performance 5Strict quality control and quality assurance, high safety factor, can be used with peace of mindItem Type: 4 in 1 USB-C HubMaterial: Aluminum alloy CNC shell Production Function:1. TYPE C interface (single charging function) 2. USB3.0 expansion (100~200M/S) 3. HDMI video output support 4K 30HZ 4.3.5 o interface (voice call volume adjustment is not supported yet) 5. Can be connected to U disk, mouse, keyboard, etc. reading card memory card/small memory card function, can support up to 128G 6. Speed 2.0 (20~40M/S) can only read cards by two options1 x 4 in 1 USB-C Hub