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A carrier to connect a NGFF M.2 Board to USB breaking out all other signals to TH testpoints
Prototyping
Test equipment
Accessories

NGFF M.2 Simple Carrier A/E Key

Sold by Wolfgang Friedrich

$26.98

$33.73 with tax in United States [change]
Select the M.2 Module key type, this carrier should work with.
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Original Design
This product was designed by Wolfgang Friedrich. By buying this product your support original hardware creators.
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What is it?

A carrier to connect to a M.2 2230/3030 or 2242/3042 Board through USB, UART or I2C. All other signals are broken out to to TH testpoints.

List of features:

  • M.2 slot with all pads on the board to accept any key slot M.2 module, if the correct connector is mounted.
  • Specifically made for A key and E key, targeting WiFi, Bluetooth, WWAN adapter.
  • Works with a subset of signals for B key and M key, but not as a USB memory interface for SSDs.
  • All signals available on through hole test points on a 2.54mm (0.1") grid.
  • PCIe signals are routed as differential pairs.
  • USB-C set up for 5V 3A max power draw.
  • Switching regulator to generate 3.3V 1.5A to power the M.2 module.
  • 1.8V LDO regulator to be able to work with the 1.8V UART and I2C signals.
  • Power switch for the 3.3V to the M.2 module with an enable jumper and 500mA over-current protection.
  • LEDs for 1.8V, 3.3V and switched 3.3V; LED for over-current condition.
  • 4 mounting holes.
  • Mounting holes for nuts to secure 2230 or 2242 modules.
  • Level shifter and connector to make UART accessible on a 3-pin header.
  • Level shifter and QWIIC connector to make I2C accessible on a 3-pin header.
  • Extra testpoints for GND, VBUS, 3.3V, 1.8V
  • Design in KiCAD.

Why did you make it?

The design came to life initially to test my M.2 RP2350 board (https://lectronz.com/products/p42-pico2-m-2). I needed a test platform to access all signals of the M.2 interface with E or A key. Single Board Computers with a M.2 port often don't access all pins, so I built this board and think it is very useful.

What makes it special?

M.2 carrier boards are generally for B or M key SSDs to other internal interfaces. This module is unique as it uses an external USB interface. I am not aware of any breakout board for M.2 modules with enhanced connectivity/functionality. There are a few passive breakout boards available that simply connect all pins to standard headers.

Links to code and documentation

Documentation (github.com)

Design Files (github.com)

Schematics (github.com)

Bom (github.com)

Product HS Code: 85423190

Shipping policy

All products are shipping from Canada with arrival times generally 1 to 3 weeks for Europa and North America.

Canada Post is in strike right now, and shipping orders is interrupted. For urgent orders, please contact me directly and I will add Courier options with updated pricing.

The seller

Wolfgang Friedrich

Wolfgang Friedrich logo

Eastern Passage, NS, Canada
15 orders since Mar 13, 2025
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