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USB 3.0 split board

Overview

The USB 3.0 output is split into one USB 2.0 port and one USB 3.0-only port. The USB 3.0-only port is not backward compatible with USB 2.0. Both output ports can be used simultaneously. The cost is similar to replicating a JLCPCB PCB board; you can buy a few connectors on Taobao – five single-layer connectors and five double-layer connectors cost a total of 6 yuan. The capacitors don't need to be soldered; it doesn't matter. The project uses two PCB boards, one with one USB 3.0 and one USB 2.0 output, which is more expensive and has slightly lower compatibility. The double-layer connector output solution is recommended. If you want a two-connector output solution, please refer to another project on my homepage.

Design Files

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Update:2026-03-27 11:35:09

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