Features: 1.Resolution Setting: If your High Definition Multimedia Interface input device, supports 4K 60hz, please set the resolution to 4K 30Hz or lower 2.1 in 2 Out : 4K HD 1 in 2 Out two screens at the same time display, connect two devices with HDM interface such as display or projector at the same time 3.Small and Compact: The small and compact body does not take up too much use space, which is convenient for storage and use 4.Pay Attention: HD multimedia interface splitter only supports mirroring and mirrored screens, no extensions are supported. Each screen will display the same image 5.PCB and Plastic: 4K HD multimedia interface splitter is made of PCB board and plastic shell material, which is wearable and durable, and can be used with confidence specification:Item Type: HD Multimedia Interface Splitter Material: PCB Board, Plastic Shell Size:Approx. 63 x 52 x 11.8mm / 2.5 x 2.0 x 0.5in Wire Length: 50cm/19.7in PackageList:1 x HDMultimediaInterfaceSplitter 1 x Power Cord