Targus Universal 4K Laptop Docking Station, Single 4K or Dual HD Video, with Charging Power, Audio, & 6 USB 3.0 Ports for PC, Mac, & Android(DOCK130USZ) 1 DisplayPort port supports a single 4K monitor (up to 3840 x 2160 x 30 fps) 1 DVI-I and 1 DVI-D ports support dual monitors (up to 2048 x 1152 x 60 fps) 1 Gigabit Ethernet port for wired access at ultra-fast speeds 5 USB 3.0 SuperSpeed ports for the latest peripherals; 1 USB 3.0 powered port for fast device charging 1 Audio In/Out port for mics, speakers and earphones Limited warranty does not cover products purchased from 3rd party sellers