4K high-definition screen expansion graphics card same screen extender USB3.0-USB-C to dual HDMI display adapterCompatible with Microsoft Windows and Mac OS X operating systemsCompact and portable, can easily fit into any backpack or laptop bagHDMI 2K port supports resolutions up to 2K 1920 x 1080 60HzHDMI 4K port supports resolutions up to 4K 3840 x 2160 30HzGPU built-in "content adaptation technology" to reduce CPU loadUSB 3.0 port and powerful GPU ensure stable video transmissionSupports multiple video decoding formats such as H.264, H.263, MP4, etcWindows computers theoretically support expanding 8 monitors, while Mac oS computers support expanding 6 monitorsNo external power adapter required, no driver required on Windows 10 operating systemWith a USB-A interface and USB-A to USB-C adapter combined, UG7602HC can easily connect to smartphonesDesktop computers, laptops, and tablets