Adds a DVI or VGA display to USB 3.0 enabled computersFeatures Designed to add an additional DVI or VGA display to your USB 3.0 enabled computer USB 3.0 adapter leverages SuperSpeed bandwidth of up to 5Gbps for the best performance and backwards compatible with USB 2.0 ports Connects to either DVI or VGA displays. For VGA displays, use the included DVI-to-VGA adapter Resolutions: HD 1920x1080@60Hz up to 2048x1152@60Hz Multiple display modes including primary, extended, and mirror Hot-pluggable and powered from the USB bus, no external power adapter is needed Notes: macOS 10.15 or later: Uninstall any legacy DisplayLink driver (v5.2.5 or earlier) and install the latest driver on SIIG's website Our adapter DOES NOT work with macOS 10.13.4 - 13.6 update. It's recommended to upgrade to 10.14 or later or stay with 10.13.3 or earlier macOS limitations: Does Not support movie/video playback via iTunes and HDCP protected content via Safari web browser (Netflix, Amazon Prime, Hulu, HBO Go, etc.)