[Verified] HDMI+USB 2-in 1-out switch KVM

# Introduction

This product combines the previous USB 2-input 4-output switch and HDMI 2-input 1-output switch, which is the final version of the KVM switch.

[HDMI switch](https://oshwhub.com/gugugu625/HDMIer-jin-yi-chu-qie-huan-qi)

[USB switch](https://oshwhub.com/gugugu625/USB2jin-4chu-qie-huan-qi)

The main switching chips are TS3DV642 and CH442E, which are used to switch HDMI signals and USB2.0 signals respectively. The structure is that two HDMI signals are input to TS3DV642, and one is output after switching. Two USB signals are output to CH442E, and the output is divided into four USB outputs to FE1.1S. Additional enumeration is required during switching, but the measured switching delay is still within the acceptable range.

The shell has been produced and verified, and there may be a slight error, but it can be installed. The HDMI socket may deviate by 0.05mm due to welding, so you need to adjust it yourself. The top cover is glued, so I'm sorry for my lack of technical skills. The shell is thin and fragile, so it can be thicker. The source file has been uploaded.
![IMG_20221217_214811.jpg] ## For PCB and schematic diagram, please click the editor in the upper right corner to open it
![2022121516109051.png] ![2022121516108211.png] ![2022121516116161.png]