Kensington SD4500, USB-C connectivity that provides 4K video along with data in a single cable Plug and Play installation without need for drivers or downloads (Mac OS requires one-time Ethernet driver download) Zero Footprint mounting allows the dock to be placed on the back of a VESA-compatible monitor (Dock Mount K33959WW sold separately) 4K Ultra HD resolution (4096x2160) to single monitor at 60Hz via HDMI or DisplayPort, or dual monitors at 30Hz Three USB 3.1 Gen 1 ports as well as one USB-C port to connect up to 4 accessories One of front USB 3.1 ports can also be used as a 2.1A fast charge port to power up a tablet or smartphone Gigabit Ethernet port for wired network connectivity Kensington Security Slot offers convenient way to attach a cable lock from the industry leader in physical security 3.5mm headphone along with microphone jacks Thunderbolt 3 compatible Compatible featuring Windows 10, 8.1; Mac OS X 10.10 or later; Chrome OS OEM: K38230 SKU: AC02913