Expand the connectivity of your MacBook Pro, Chromebook or other with thisNikkai USB-C Multiport Hub USB-A 3.0/HDMI 4K/Gigabit RJ45/USB-C PD lets you add a USB 3.0 Type-A port, 4K Ultra HD HDMI video output, Gigabit Ethernet port and a Power Delivery charging USB-C port through your laptops USB-C port. With the additional USB 3.0 port (USB Type-A) you can connect existing peripheral devices, like your mouse or flash drive. It delivers up to 5 Gbps data speeds. Using the 4K HDMI port (with audio) , you can easily connect a high-resolution monitor and gain access to more screen space. The Gigabit Ethernet port ensures reliable wired network access, which is ideal for areas with limited Wi-Fi. It also features a USB-C port that supports USB Power Delivery 3.0 (USB PD 3.0) to use your laptops USB-C power adapter to power both your laptop and the multiport adapter. Additionally, use this adapter to mirror the screen of your USB-C device (including iPAD, iMAC, PC laptop) to display apps, presentations, websites, slideshows on your HDMI-equipped TV, display, projector or other compatible display. HDMI cable required for this, sold separately. The versatile multiport adapter is compact and lightweight, so it's easy to tuck into your laptop bag. It consolidates multiple ports into a single adapter, which means you dont need to bring along multiple single-function adapters.