Adafruit Feather STM32F405 Express

Marsoni

M251S

$47.95

Get it in 3 business days with 1 day shipping. Friday, May 29

Adafruit Feather STM32F405 ExpressST takes flight in this Feather board. The new STM32F405 Feather (video) that we designed runs CircuitPython at a blistering 168MHz our fastest CircuitPython board ever! We put a STEMMA QT Qwiic port on the end, so you can really easily plug and play I2C sensors. This Feather has lots of goodies: STM32F405 Cortex M4 with FPU and 1MB Flash, 168MHz speed 192KB RAM total 128 KB RAM for general usage + 64 KB program only cache RAM 3. 3V logic, but almost

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Exchange/Return Notes

We offer a 30-day return/exchange service after receiving.
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This is an exceptionally high-quality tray. The design was well thought out and it looks amazing. I keep it in my top dresser drawer to organize extra cards for my wallet, my watch, cufflinks, and other items. I can’t say enough about the high level of quality. It stays in place, has great storage and very reasonably priced I thought.

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Reviewed in the United States on August 15, 2025