<p><b>Suggestions for use:</b><br></p><p></p><p>1. If it is connected to 4K@60Hz resolution, we recommend that you use an HDMI 2.0 cable. Because if it is a 1.4 cable, it cannot meet 4K transmission.</p><p></p><p>2. If 2160P-RGB and YUV444 do not display images, please try to adjust to 2160P-YUV420 to see if the images are displayed.</p><p></p><p>3. The safety distance for 4K transmission is 1.5 meters at the front and 1.5 meters at the back.</p><p></p><p>4. Our power supply method supplies power to the HDMI port. It is recommended that you connect both OUT ports to increase the power of the product.</p><p><br></p><p></p><p><b>Name: </b> HDMI Switcher</p><p><b>Switching mode: </b> manual button, two-way switching</p><p><b>Processing chip: </b> imported high-performance chip</p><p><b>Picture quality: </b> 4K × 2K @ 60hz, 1080P @ 60hz, 3D</p><p><b>Interface: </b> HDMI gold-plated</p><p><b>Transmission distance:</b>  Front end 1.5m, back end 1.5m (4K@60Hz)</p><p><b>Material:  </b>metal case</p><p><b>Colour: </b> Black</p><p><b>Dimensions:</b>  50mm × 52mm × 20mm</p>