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Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex

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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 ==
Four-port USB 3.2 Gen1 hub with metal case, wall-mount support, driver-free operation and multi-system support.

== Related products at JW Tech ==
* [https://shop.jw-tech.eu/p/WSAL27837 WSAL27837 – 4-Ch USB 3.2 Gen1 HUB, Metal Case With Wall-Mount Support, Driver-Free, Plug-And-Play, Multiple Systems Support]

== Technical overview ==
* Four extended USB 3.2 Gen1 ports, backward compatible with USB 3.2 / 2.0 / 1.1.
* DC power via a round DC jack (5 V) or a 2-pin connector for stable supply to connected devices.
* Each USB output delivers up to 2 A; total peak current across the four ports is 5 A when sufficient input power is provided.
* LEDs: LED1–LED4 indicate successful enumeration of each USB device; a red PWR light indicates power supply, green LEDs identify USB interface usage.
* Operating temperature range: -10 °C to 85 °C, no condensation allowed; the module is not waterproof.
* The metal case includes mounting holes for easy installation, e.g., on a wall.
* Driver-free and plug-and-play, compatible with Windows, macOS, Linux and Android.
* When using the 2-pin power terminal, align the positive and negative poles as printed on the PCB.

'''Commands and examples – verify before use:'''
<syntaxhighlight lang="text">
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
</syntaxhighlight>

== Notes and version constraints ==
* Exact compatibility with specific Raspberry Pi models or Sunrise X3 PI versions is not fully specified in the source; verify before purchase.
* The source contains placeholders such as {{{name2}}} through {{{name6}}} and {{{userDefinedInfo}}}; these fields must be filled manually.
* Some modules require software configuration before LEDs light up; this is version-dependent.
* Overloading a USB port (>1.2 A) triggers short-circuit protection; remove the device to recover.
* The exact DC voltage specification varies between 7–36 V and 5 V depending on the source; verify the actual power supply.

== Source and revision record ==
* [https://www.waveshare.com/wiki/USB3.2-Gen1-HUB-4U USB3.2-Gen1-HUB-4U - Waveshare Wiki]
* Source revision: 110651
* Captured: 2026-08-29T08:27:00+00:00
* SHA-256: <code>12236b16d88d2679bd6cc7a5a2881d6ec6192ab715168af45fbec0d3f6712cf6</code>

WSAL27837 – USB3.2-Gen1-HUB-4U/en - Versionsgeschichte

JWTechPublisher: Freigegebene technische Dokumentation veröffentlicht; Text-only und noindex