Geplink Micro USB Powered Active Hdmi to VGA Adapter with Audio in Black 8 Inches for Multi Monitors and Projector Built-in active IC chip improves compatibility. Included 2.5 feet Micro-USB cable provides additional power for source devices with low-power output port such as MacBook Pro with Retina Display so you can drive a long VGA extender cable, output stereo sound to devices such as speakers with the included 3 feet stereo audio cable Gold-plated connectors resist corrosion, provide rigidity, and improve the signal performance. 4" short cable relieves strain and protects HDMI port on your device The HDMI VGA converter is compatible with desktop, laptop, Ultrabook, notebook, Intel Nuc, Macbook Pro, Raspberry Pi, Chromebook, Apple TV, Roku streaming media player, cable box, or other devices with HDMI port plug and play,no driver required , When using the Samsung ChromeBook and Macbook Pro with Retina Display, please plug in the included Micro USB power cable first Converts HDMI in to VGA video with audio