1、This Product is applicable to your desktop computer or laptop with USB0, you can use it safely. 2、Applicable system: For WIN XP/WIN7/WIN 8/WIN10 (does not support for MAC OS system) 3、Supports dual-screen simultaneous display and extended mode, with a simultaneous display resolution of 1920×1080P. 4、Its resolution is up to HDMI-1920×1080P, VGA-1920x1080P. VGA has no audio transmission. 5、Aluminum alloy casing is more fashionable and beautiful. Features: 1. This Product is applicable to your desktop computer or laptop with USB 3.0, you can use it safely. 2. Applicable system: For WIN XP/WIN7/WIN 8/WIN10 (does not support for MAC OS system) 3. Supports dual-screen simultaneous display and extended mode, with a simultaneous display resolution of 1920x1080P. 4. Its resolution is up to HDMI-1920x1080P, VGA-1920x1080P. VGA has no audio transmission. 5. Aluminum alloy casing is more fashionable and beautiful. Specification: Material: Aluminum alloy Length: Approx. 15cm/ 5.9inch Interface: 1 x USB male (connected to desktop computers, laptops)         1 x HDMI female         1 x VGA female Package List: 1 x Adapter Note: Driver installation: The first time you need to install the driver, insert the product into the computer, open My Computer, there is a FL2000 drive letter, click to install, the driver can be used after installation, and then do not need to install again. Note that VGA has no audio transmission.