The miniUSBHUB made with the official circuit plan makes full use of every inch of land. The next step is to add network ports. The welding yield is relatively low. I don’t know why. Some of them work and some don’t. Some interfaces work and some don’t. I don’t know if it’s because of welding. The technical problem is still a problem with the PCB circuit board. 3 out of 5 successes, and some USB interfaces are unresponsive.
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