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WSAL17584 – USB 3.2 Gen1 HUB HAT/en

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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 3.2 Gen1 HUB HAT adds four USB 3.2 Gen1 ports to a Raspberry Pi or RDK X3. It is driver-free, includes an external 5 V DC input (USB-C) for higher loads, and provides status LEDs.

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Technical overview

  • Four USB 3.2 Gen1 ports, backward compatible with USB 3.0 / 2.0 / 1.1.
  • Standard 40-pin GPIO header for mounting on Raspberry Pi boards.
  • External USB-C input is power-only (“PWR ONLY”), not a data port.
  • Onboard hub chip VL817-Q7 and flash chip MX25L512EOI-10G.
  • One power LED and four port LEDs (USB1–USB4) indicate operating status.
  • Connect to Raspberry Pi 4 via a USB 3.0 adapter; adapt the connection for other Pi versions or RDK X3.
  • Total bandwidth of the four ports is up to 5 Gbps shared.
  • Driver-free operation under Windows, macOS, Linux, and Android.

Commands and examples – verify before use:  

cd ../..
cd media/pi/xxx
sudo sh -c "sync && echo 3 > /proc/sys/vm/drop_caches"
dd if=/dev/zero of=./test_write count=2000 bs=1024k
dd if=./test_write of=/dev/null count=2000 bs=1024k
sudo apt-get update
sudo apt-get install hdparm -y
sudo hdparm -tT /dev/sda*
ls /dev/sd*
while true; do sudo hdparm -t /dev/sda2; sleep 10; done

Notes and version constraints

  • The source contains placeholders such as {{{5}}} where commands or values are missing; these must be completed by technical staff before publication.
  • The Ubuntu test section assumes a graphical benchmark UI; exact menu names are not fully specified in the source.
  • Stacking two HUB HATS is theoretically possible but not recommended due to potential bandwidth and power-supply issues.
  • For high-power devices (e.g., external hard drives), an additional 5 V supply must be connected to the USB-C input.
  • If mouse/keyboard fail: re-plug the cable and check the adapter; a faulty USB 3.0 adapter may be the cause.
  • The command “hdpram” in the RDK X3 section is likely a typo for “hdparm”; have it corrected before release.
  • Exact compatibility with older Raspberry Pi models is only stated generally in the source; details vary by Pi revision.

Source and revision record

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