Specifications:Bi-direction design, supports two modes: 1 in 2 out & 2 in 1 out.Support 4K*2K/30Hz resolution, so you can enjoy a visual feast.Plug and play, no external power supply required.Mini and compact size, easy to carry and use.Item Name: HDMI-compatible SwitcherMaterial: ABSMain Chip: TS3DV642Resolution: 4K*2K/30Hz, 2K/60Hz, Downward CompatibleRefresh Rate: 120Hz (Max.)Version: HDMI-compatible 1.4Supported Audio Format: DTS/for Dolby-ture HD/LPCM7.1/for Dolby-ac3/DSDSupport: 4K HD, 3D View4K*2K/30HZ Support: Input Line Length 0.75-8 Meters, Display End 0.75-5 Meters (28AWG Specification Line)1920*1080/60Hz Support: Input Line Length 8-10 Meters, Display End 5-8 Meters (28AWG Specification Line)Features: Bi-Direction, 4K HD, 3D Effect, Plug and PlaySwitcher Size: 5.1cm x 5.1cm x 1.35cm/2.01" x 2.01" x 0.53" (Approx.)Notes:Due to the light and screen setting difference, the item& 39;s color may be slightly different from the pictures.Please allow slight dimension difference due to different manual measurement.Package Includes:1 x HDMI-compatible Switcher