12-in-1 EXPANSION - With a compatible USB-C or Thunderbolt 3 Windows or Mac laptop this laptop docking station can charge your device, connect up to 3 HDMI monitors, add Gigabit Ethernet, 3.5mm TRRS headset jack, and provides 6x USB 3.0 ports TRIPLE MONITOR DISPLAY - This USB C docking station features 3 HDMI video outputs including 1x HDMI output capable of 4K 30Hz, 2x HDMI outputs capable of 1080p 60Hz using Display Support for these features is determined by your laptop manufacturer. No HDCP support. - Port Alternate Mode ("Alt Mode") and Display - Link USB graphics. All through a single USB-C cable. See important notes regarding Alt Mode and PD compatibility below. Graphics Performance HDMI 1 utilizes USB-C Alt Mode which has a direct "pipeline" to the host graphics processor (GPU), and connected monitor will perform as if connected directly to the computer. The 2nd and 3rd HDMI ports utilize Display - Link DL-3900 USB graphics which leverage the host GPU & CPU; these outputs are ideal for office and web browsing work but may not perform well for 2D or 3D graphics applications, full screen video, or video editing software and are not recommended for gaming. Alt Mode and PD Compatibility Alt Mode video supported on select systems including Dell XPS 9350, 9360, 9370, 9380, 9550, 9560, 9570, 9580, Dell Precision 5510, HP Spectre 13"" x360 13t and many more. Cannot be mixed with non-Display - Link USB graphics adapters and drivers (e.g. MCT, j5, or SMSC). HDCP/Blu-ray playback not supported. Incompatible Systems Not compatible: mac - OS (version 10.13.6 and older), Chrome - OS, Linux, or Android. Not compatible with phones or i - Pad or Android tablets. ASMedia USB 3.1 controllers do not support Alt Mode at this time. Not recommended for use with Desktop computers. In the Box UD-3900PDZ dock, 0.8m USB-C cable, and 90W (20V, 4.5A) power adapter with power plug