RAPID HEAT DISSIPATIONThe usb hub adapter body shell is made of aluminum alloy, ensuring that the hub does not heat up when it is fully loaded. Anti-fingerprint, wear-resistant, and anti-corrosion. | SD & Micro SD SlotsWith this USB C adapter, you can unload your SD/TF (microSD) memory cards and transfer beautiful holiday photos or videos very quickly from camera to laptop. How fast? - At 104MB/s, 100 photos are only transferred within 10s. | ENJOY NEW VIDEO EXPERIENCEThis USB C MacBook Adapter Dongle 's HDMI Support Extend Mode and Mirror Mode. No driver Needed, Plug And Play 4K@30hz,down compatible with 2K@60h,1080p,1080i,720p,480p |