Kensington SD4000 Universal USB Docking Station $99 was $198 at Microcenter. Get this deal

From the leader in desktop productivity solutions, Kensingtons SD4000 Universal Docking Station enables 4K Ultra HD, even when your laptop doesnt have a 4K graphics card. As well as serving as a central hub and charger for all your peripherals, the dock provides Ultra HD (3840×2160) 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 (2048×1152). There are three available USB 3.0 ports that support transfer speeds of up to 5Gbps, including one that provides 2.1 AMP fast charging for a tablet or smartphone. Theres also a gigabit Ethernet port so you have a reliable, wired network connection.