UGRREN USB 3.0 to DVI VGA HDMI Adapter USB Dual DVI Video Card External Graphics Card DVI USB Converter for Multiple Monitors USB 3.0 to dual DVI HDMI VGA video card adapter allows you to easily add 2 external DVI/HDMI/VGA monitors, displays, HDTVs simultaneously to your desktop or laptop through a single USB 3.0 or 2.0 interface (support max 6 monitors on Windows PC, one adapter support 2 monitors). Note This product can NOT work for 2 HDMI monitors nor 2 VGA monitors. (only for 1 HDMI and 1 VGA display). It adopts the latest DisplayLink DL-3900 chipset, and supports monitors, LCD, displays, projectors with DVI, HDMI or VGA interface(2 DVI adapters included). DVI (24 +1) output: support DVI and HDMI; DVI(24 + 5) output: support for DVI and VGA. Supports resolutions up to 2048*1152 (1920 x1200 for analog VGA). NOTE: When connect both HDMI and VGA outputs, pls plug a micro usb cable to offer extra power(micro usb cable not included). Synchronized Audio and Video: DVI and VGA can only process video signal, this adapter additionally provides with a 3.5mm line-out jack. Let you connect this adapter to your TV or external speakers through a 3.5mm jack audio cable(sold separately). (Sound settings: Sound-Output-USB Audio). However, when you connect this adapter to HDMI displays, audio and video would be transferred simultaneously over one HDMI cable, no need extra audio cables. Multiple Functions: Support Mirror, Extend, Rotate, Primary(set as main screen); Aluminum case design, with better heat dissipation. USB 3.0 cable length: 20 inch; Micro USB female is optional for power to enhance stable performance. Great Compatibility: Support Windows10 8.1 8 7 XP, Mac OS 10.6/10.7/10.8/10.9/10.10/10.11 El Capitan(drivers via Windows Update, direct download, or disk available). DO NOT support for Linux and Chrome OS. IMPORTANT NOTE For latest Windows 10 and Mac OS 10.13 and above, please contact us to get the latest driver.