Fangrui Product Details 1. Measy Mt4344 4k 30hz 4 In 4 Out Hdmi Matrix Switch Support Seamless Switching 2. Product Introduction 3. This Hdmi 4k 30hz Matrix 4x4 Can Connect 4 Hd Display Signal Sources With 4 Hd Signals At The Same Time, And Can Support Optical Fiber And Stereo Headphone Output. It Can Freely Switch Or Distribute 4 Hd Signals On 4 Hd Signal Compatible Monitors Or Projectors. The Hdmi Out1 Output Port Can Realize Independent Audio Output Through Optical Fiber Or Stereo Headphones. Hdmi 4k 30hz Matrix 4x4 Reorganizes And Amplifies The Input Signal And Transmits It Losslessly Through Hdmi Cable. The Solution Provided By This Hdmi Matrix Is Applied To Entertainment Centers, Retail And Websites, Hdtvs, Set-top Disks, Dvds, Projectors, Data Center Control, Information Distribution, Conference Rooms, Schools And Corporate Training Environments For Digital Hdtv Programs. 4. Product Features 5. Compact Structure, Stable And Reliable 6. Widely Compatible, Plug And Play, No Need To Install The Program Driver, Easy To Use 7. Support Audio Extraction Of Hdmiout1, 3.5mm Headphone Interface And Optical Fiber Interface Output At The Same Time 8. Support Up To 4k 30hz Resolution, 3d Stereo Imaging Technology 9. Support Rs232 Control, More Convenient Connection 10. 4 Output Ports Can Display Ultra-high-definition Video From The Same Or Different Signal Sources 11. Product Parameters 12. Resolution: Up To 4k 30hz 13. Switching Mode: Buttonremote Controlrs232 Serial Port 14. Input Interface: Hdmi X 4 15. Output Interface: Hdmi X 4 16. Support Audio Formats: Dts-hddolby-truehdlpcm7.1dtsdolby-ac3dsd 17. Maximum Transmission Rate: 18gbps 18. Maximum Operating Current: 0.8a 19. Power Adapter: Input: Ac100-240v50-60hz, Output: Dc12v 1a 20. Operating Temperature Range: -15 Degrees Celsius To 45 Degrees Celsius 21. Operating Humidity Range: -rh (non-condensing) 22. Product Size: 218 X 89 X 22mm 23. Product Weight: 505g