?What You Get?KOZYC 4 IN 1 USB-C Hub x 1, User Manual x1 with a hassle-free 2-year warranty and lifetime technical support. Feel free to reach our friendly customer service if you have any questions. ?Broad Compatibility?This USB C HDMI Adapter is compatible with Linux, Windows, Mac OS, & Android systems, with compatible Thunderbolt 3 and DP 1.4 alt mode. Support: MacBook/ MacBook Pro, Dell XPS, Lenovo Yoga, LG, HP, Samsung Galaxy, etc. ?Plug and Play?No external power supply is required for this USB C to HDMI Adapter, just plug and play, and no need for any driver. Note: NOT for all USB-C port laptops, Make sure your laptop or PC supports ” Thunderbolt 3” or “displayport output mode(DP ALT mode). ?4k 30Hz?With a single HDMI port used, the resolution is up to 4K@30Hz. With both HDMI ports used simultaneously, Macbook up to 4K@30Hz, Windows (DP 1.4/ Thunderbolt 4) up to 1080p@60Hz. This USB C to HDMI adapter is backward compatible with 2K/1080P resolution at 60Hz. Please note: If you want to get a 4k resolution, please make sure your device supports 4k and uses an HDMI cable 1.4 or better. ?USB 3.0 to Dual HDMI Adapter ?This KOZYC USB-C adapter features 2x HDMI port, 1x USB 3.0 port, and 1x100W PD charging port, Note: Android system only supports AAA mode(mirror mode); macOS supports AAA, and ABB mode (does not support MST ABC mode); Windows OS supports AAA, ABB, ABA, and ABC mode.