WSAL23252 – USB TO M.2 B KEY/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

Technical overview of the USB-to-M.2-B-Key driver board for connecting 5G/4G modules to a computer, Raspberry Pi, or Jetson Nano via USB 3.1.

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Technical overview

The board is a module driver board and cannot operate alone; it requires a compatible 5G or 4G module with an M.2 (NGFF) Key B interface.
Supports 5G modules in 3042/3052 form factor, such as SIM82XX and RM50XQ series.
Four IPEX-to-SMA antenna connectors allow direct antenna installation.
A NANO SIM card slot is provided.
A USB 3.1 Type A port enables connection to a PC, Raspberry Pi, or Jetson Nano.
An aluminum alloy heatsink cover improves heat dissipation.
Multi-slots and mounting holes are reserved for integration.
PCB finish: immersion gold.
Power and network LEDs plus test pads are available for diagnostics.

Commands and examples – verify before use:

AT
ATE1
ATE0
AT+CGMI
AT+CGMM
AT+CGSN
AT+CSUB
AT+CGMR
AT+IPR?
AT+CFUN=1,1
AT+QUIMSLOT?
AT+CPIN?
AT+COPS?
AT+CEREG?
AT+C5GREG?
AT+QENG="servingcell"
AT+QNWPREFCFG=?
AT+QCFG="usbnet",2
AT+QGPS=1
AT+QGPSLOC=0

Notes and version constraints

The device cannot operate without a compatible module.
Compatibility of other M.2 B-Key modules must be verified against the pinout and confirmed by practical testing.
Speed measurements depend heavily on location, network load, coverage, and carrier limits; lab values are often not reached in the field.
On Linux, detection can be checked using "lsusb" and "ls /dev/ttyUSB*".
IPEX connectors are fragile; when removing the module, gently wiggle side-to-side and pull evenly.
Increased fan noise after prolonged use may be due to lubricant evaporation and is not necessarily a fault.
Modules lacking USB functionality (PCIe only) are not supported; only modules with USB functionality and matching pinout are suitable.

Source and revision record

USB TO M.2 B KEY - Waveshare Wiki
Source revision: 110889
Captured: 2026-09-04T02:47:29+00:00
SHA-256: ea0e9d2565a7b94ba3757890010882e71e71dab2dd3be2c8c0e5f2d8dc0e30be