WSAL20317 – USB HUB HAT (B)/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The USB HUB HAT (B) is an expansion board with four USB 2.0 ports that mounts directly on the Raspberry Pi Zero / Zero W via pogo pins. It expands the number of available USB ports and includes an onboard USB-to-UART converter.

Related products at JW Tech

Technical overview

Four USB 2.0 ports to expand peripheral connectivity on the Raspberry Pi Zero / Zero W
Connects to the Raspberry Pi Zero via pogo pins; other Raspberry Pi models require a USB cable
Onboard USB-to-UART converter included on the board
LED indicator lights up when the USB ports are successfully enumerated
Screw standoffs use M2.5 spacing
Pogo pins support a maximum current draw of 3 A
If the Raspberry Pi Zero's USB port is configured as a wired network card, the USB hub will not be recognized
This can be fixed by adding dtoverlay=dwc2,dr_mode=host to /boot/config.txt and removing module-load=dwc2,g_ether from /boot/cmdline.txt

Commands and examples – verify before use:

sudo nano /boot/config.txt
dtoverlay=dwc2,dr_mode=host
sudo nano /boot/cmdline.txt
module-load=dwc2,g_ether
sudo reboot

Notes and version constraints

Exact electrical limits and compatibility depend on the specific Raspberry Pi version; verify before use
Changes to config.txt and cmdline.txt require a device reboot
If the hub is not recognized, first check the USB connector or pogo pin contacts for poor contact
Additional drivers (e.g., CP2102) may be required depending on the operating system; installation must be manually verified

Source and revision record

USB HUB HAT (B) - Waveshare Wiki
Source revision: 87161
Captured: 2026-09-02T03:41:50+00:00
SHA-256: 74ec347dd0fa3890c7d3186114bb82174e354a1f2677ed45e4c45596db51759d