Usb To Dual Hdmi Adapter Connects Up To 2X Hdmi Monitors (1X 4K 30Hz + 1X 1080P) To A Computer Using The Built-In Usb-A/Usb-C Cable; 2Ch Hdmi Audio; Usb To Hdmi Converter Is Bus-Powered; 4" (11Cm) Attached Cable - Supports 3 Displays In Extended Mode Incl. The Laptop Screen; 4K Output Supports Ultrawide Displays Up To 3440X1440 30Hz - Multi-Monitor Video Adapter Works With Windows/Macos/Chrome Os - Attached Usb-A To Usb-C Dongle To Connect To Usb Type-C Laptops/Desktops; Compact Form Factor