8 in 1 Type-C hub is an excellent extension adaptor ideal for Apple MacBook series and other Type-C devices. Supporting audio/video connectivity through the 4K HDMI, VGA, and AUX ports. Ethernet connectivity is supported through the RJ45 port. The SD card reader and dual USB ports allow you to transfer data easily from your SD card and USB-interfaced data storage devices. With a 3.5mm headphone jack, you can easily plug in headphones or a speaker and listen to your music while you work. This jack supports up to 16 bit, 48 kHz sound output.