StarTech.com USB 3.0 to Dual HDMI Adapter, 1x 4K & 1x 1080p, External Graphics Card, USB Type-A Dual Monitor Display Adapter, Windows Only - USB 3.0 to dual HDMI adapter supports 1x 4K 30Hz (UHD) + 1x 1080p - 4K port supports ultrawide displays - Extend your desktop by adding 2 monitors - USB Type-A to HDMI adapter works w/ Windows only; Auto-driver install - External Video/Graphics Card