Important Information about macOS 10.13.4 update: We have become aware that installing macOS release Version 10.13.4 will cause DisplayLink connected displays to go blank after the OS upgrade. With the current DisplayLink driver [4.3] beta3 installed you will be able to extend 1 desktop. Functionality such as Ethernet and audio, where implemented, is unaffected. We have alerted Apple to this issue and are working hard to find a resolution. The macOSX version 10.13.3 is unaffected at this time Supports Simultaneous HDMI and DVI Displays, Speaker Port, Microphone Jack Featuring Two USB 3.0 + Two USB 2.0 Ports You Can Enjoy Transfer Speeds up to 5Gbps (USB 3.0), 480Mbps (USB 2.0), 12Mbps (USB 1.1) 10/100/1000 Gigabit Ethernet Port For Incredible Internet Speeds With Two 2.4A Fast Charging Ports You Can Charge Any of Your Devices