Long Cable Extension: Particularly features a 3.3 feet super long cable, making LENTION CB-C37 USB C hub an ideal solution to maximize your device's capability to create a more efficient workstation and freely adjust the desktop layout as you like. It is a good choice for back to school supplies, as well as a good helper for your work Both Video & Audio: Mirror or extend your desktop onto any HDMI-enabled TVs, monitors or projectors via HDMI. Supporting 3840x2160 4K@30Hz, 2560x1600 and lower resolutions at 60Hz. It is also downward compatible with 2K@75Hz and 1080P@144Hz. The 3.5mm audio port support mic in & out Dual USB C Ports: One is only for charging which provides up to 60W power pass-through. Another is for data transfer which supports USB 3.0 standard with speed up to 5Gbps (not support video signal transfer). Dual USB C ports can work simulaneously SuperSpeed Transmission: 2 USB-A female ports support USB 3.0 super speed transmission (up to 5 Gbps). SD & Micro