


Adafruit NeoTrellis M4 Mainboard featuring SAMD51
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Adafruit NeoTrellis M4 Mainboard featuring SAMD51The Adafruit NeoTrellis M4 is an all in one USB, NeoPixel, Elastomer, and Audio development board powered by the SAMD51 Cortex M4 core running at 120 MHz. This feature packed board includes 512KB flash and 192KB SRAM, along with an additional 8MB SPI flash chip for ample file and audio clip storage. Perfect for CircuitPython and Arduino projects, it offers hardware DSP, floating point support, and dual 12 bit DACs for audio output. The board features
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4.6 ★★★★★
Based on 2009 reviews
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Product Reviews
★★★★★ 4
Great quality case, keyboard doesn’t work as intended
Color: Dark Cherry
Case is fine and good quality but the keyboard doesn’t work as intended. Bluetooth connects great but the keyboard is formatted incorrectly. For example, when I try to use a dash, it puts an apostrophe instead. I have no idea how to reformat it myself. I’d love just a replacement keyboard
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Reviewed in the United States on January 31, 2026
★★★★★ 5
Worth it!
Color: Pink, Color: Pink
Great buy! Worth the money and the color is nice. The keyboard works, some buttons I haven’t figured out but for the most part it’s worth the purchase!
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Reviewed in the United States on May 20, 2026
★★★★★ 5
Nice colors
Color: Yellow
This was a perfect choice for my iPad. The color is very vibrant easy to put on and its sturdy will buy again in another color.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Keyboard is magnetic to cover so it doesn’t fall out
Color: Pink
Absolutely love this ! My iPad fits perfectly in this and the keyboard is touch sensitive which I like and the color combo on the keyboard makes it fun ! Definitely will recommend this
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Reviewed in the United States on June 11, 2026
★★★★★ 5
Great quality case and keyboard
Color: Purple, Color: Purple
Super good quality case, I was actually surprised since it’s such a good price. It fit my 10.9 inch perfectly! Keyboard has magnetic attachment to the case which is super handy, and it connected with Bluetooth seamlessly. Keyboard isn’t silent, it’s on the louder side, but not too loud at all and it doesn’t bother me at all because I prefer clickier keyboards. Oh also something that’s really cool is that you can change the colors of the keyboard, love that!
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Reviewed in the United States on April 10, 2026