USB 3.1, generation 1 USB-C Docking Station turns your MacBook, Chromebook, tablet or laptop into a versatile workstation. By connecting its built-in cable to your device's USB-C or Thunderbolt 3 port, you'll be able to add an external display, access Gigabit Ethernet networks, transfer data, display video & more. Mini DisplayPort (mDP), VGA & HDMI ports allow you to connect an external display (one display at a time). The mDP & HDMI ports support UHD video resolutions up to 3840 x 2160 (4K x 2K) at 30 Hz. The VGA port supports HD video resolutions up to 1920 x 1200, including 1080p, at 60 Hz. Connect a Gigabit Ethernet cable (sold separately) to the RJ45 port to access true 10 / 100 / 1000 Mbps network speeds. A dedicated BC 1.2-compliant USB port provides up to 1.5A of fast-charging power. Micro SD & SD / MMC memory card slots provide access to external memory. A 3.5 mm audio jack is convenient for connecting speakers, headphones or a microphone to your connected device.