Universal docking station 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 (3840x2160) to a single 4K monitor or TV via an HDMI or DisplayPort connection. When using two additional monitors instead of one, the dock provides 2K resolution to each screen (2048 x 1152). Three available USB 3.0 ports support transfer speeds of up to 5Gbps, including one that provides 2.1 AMP fast charging for a tablet or smartphone. Gigabit Ethernet port provides a reliable, wired network connection. Docking station is compatible with Windows 8.1/8/7.