The USBN9603/4 are integrated, USB Node controllers. Texas Instruments USB IC Universal Serial Bus Full Speed Node Controller withEnhanced DMA Support Universal Serial Bus Full 28-SOIC ...

 http://www.procyonengineering.com/embedded/avr/boards/index.html

 https://www.mouser.tw/ProductDetail/Texas-Instruments/USBN9603-28M-NOPB?qs=8uBHJDVwVqxoyU4iXBH18A%3D%3D

 https://jj1odm.sizious.com/g2bus.html

http://www.sanda.gr.jp/non/PIC-USB/index.html 

USB Interface IC Universal Serial Bus Full Speed Node Controller with Enhanced DMA

https://www.elektormagazine.com/magazine/elektor-200005/16760

https://forums.developer.nvidia.com/t/pcie-to-4-usb-ports-use-vl805-chipset-on-jetson-nano-custom-carrier-board/143085

https://www.amazon.nl/Diagnostic-Volledige-Diagbox-Firmware-Diagnostic-Tool/dp/B08738N5WX