Expand the connectivity of your MacBook Pro, Chromebook or other USB-C enabled laptop. The Nikkai USB-C Multiport Hub 2x USB-A 3.0/HDMI 4K/SD Card Reader lets you use a 4K Ultra HD HDMI video output, two USB 3.0 Type-A ports and both a SD and a MicroSD card reader slot through your laptops USB-C port. Using the 4K HDMI port, you can easily connect a high-resolution monitor and gain access to more screen space. With two additional USB 3.0 ports (USB Type-A) you can connect existing peripheral devices, like your mouse or flash drive. They deliver up to 5 Gbps data speeds. The adapter also has an SD and a MicroSD card reader slot so you can access all of your multimedia content. Both can work simultaneously. 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.