AliExpress.com Product – 4 Port USB HUB HAT for Raspberry Pi Zero / Zero W, USB to UART Onboard compatible with USB2.0/1.1

1. Raspberry Pi GPIO interface: for connecting Raspberry Pi
2. USB to UART: for controlling the Raspberry Pi via serial terminal
3. USB HUB interface (bottom): for connecting the HUB to the Raspberry Pi USB port
   • Raspberry Pi Zero / Zero W: connected via Micro USB connector
   • Raspberry Pi B+ / 2B / 3B: connected via Micro USB cable
4. USB extended ports: USB1~USB4
5. USB port indicators: dedicated indicator for each USB port, D1~D4 for USB1~USB4 respectively
6. Power indicator
7. USB to UART indicator
8. FE1.1S: USB HUB chip
9. 12MHz crystal
10. CP2102: USB to UART converter

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