Enables 4K Ultra HD, even when your laptop doesn’t have a 4K graphics card. As well as serving as a central hub and charger for all your peripherals, the dock provides Ultra HD (3840 x 2160) to a single 4K monitor or TV via an HDMI or DisplayPort connection. When using two monitors instead of one, the dock provides 2K resolution to each screen (2048 x 1152). There are three available USB 3.0 ports that support transfer speeds of up to 5 Gbps, including one that provides 2.1 amp fast charging for a tablet or smartphone. There’s also a gigabit Ethernet port, so you have a reliable, wired network connection.