Adafruit Feather M4 Express User Manual

Assembly
We ship Feathers fully tested but without headers attached - this gives you the most flexibility on choosing how to use
and configure your Feather
Header Options!
Before you go gung-ho on soldering, there's a few options to consider!
The first option is soldering in plain male headers, this
lets you plug in the Feather into a solderless
breadboard
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Adafruit Feather M4 Express Specifications

General

Brand	Adafruit
Model	Feather M4 Express
Category	Microcontrollers
Language	English