Your Satisfaction Guaranteed is Our Primary Policy: We sincerely provide 24-hours service, obviously there's no worries hidden for you to purchase our USB C to HDMI adapter! If you have any issues before or after order, please do not hesitate to contact us for a pleasant solution, Thank you!. USB-C or USB 3.0 to HDMI: Equipped with 2-in-1 cable, USB to dual HDMI splitter extended display is easily connected to USB-C, USB-A, thunderbolt 3/4, USB 4 devices, easily compatible with more devices. Ultra-stable Data Transfer: USB 3.0 ports support data transfer rates 5Gbps. Allow external graphics cards to transfer data more stably. Whether you're backing up a large number of files or transferring HD video, you'll be able to do it more consistently. Supported Systems : The USB to HDMI splitter for dual monitors supports Windows 11, 10, Mac OS 10.15 or later for MacBook Air/MacBook Pro. Only one output at 4K@30 is supported. If used, the second output will be limited to 1080@60. Note: Please download displaylink and install thedriver before use. Dual Monitor Adapter: GIQ USB 3.0 to dual HDMI adapter extend screen to two monitor TV, each capable of mirrored or extended display with resolutions up to 4K@ 30Hz. HDMI docking station for dual monitors support Mirro mode (A-A-A) and Exetended mode (A-B-B & A-B-C). You can enjoy movies, games with your families on external ultra HD You can enjoy movies, games with your families on external ultra HD big screen.