Adds HDMI, USB A, USB C PD charging and Gigabit Ethernet. Connect to USB C or Thunderbolt 3. Transmits video signals from sources supporting USB C DisplayPort Alt Mode. Delivers UHD picture quality at resolutions up to 4K x 2K 30 HZ. Connects to a wired Gigabit Ethernet when Wi Fi is weak or unavailable. Power Delivery port provides 20 V 3A 60W power output for charging connected device. USB A supports USB 3.1 Gen 1 speeds up to 5 Gbps for fast data transfer. For Use With: Smartphones Tablets Computers Connector/Port/Interface: USB C 4K HDMI USB A PD Charging Width: 1.57" Depth: 3.15".