The JCD371 provides extra connectivity for your MacBook®, or other USB-C® laptop. This pocket-sized multi-adapter with two USB™ 3.0 Type-A ports allow you to connect an external keyboard, mouse, or USB™ flash drive. With up to 5Gbps of high-speed transmission, data transfer is quick and easy. The HDMI™ port allows you to mirror or extend your screen and directly stream 4K UHD or Full HD 1080p video to an HDTV, monitor, or projector. The USB-C® power delivery port allows you to connect a USB-C® power adapter for charging your personal laptop.