Welcome to the range of SAMD21 Boards from PMD Way. 

The SAMD21 32-bit microcontroller from Microchip (was Atmel) is an incredibly powerful microcontroller that is also supported in the Arduino environment (such as the Arduino Zero and compatible boards), and is ideal for turbocharging your Arduino projects. Of course you can also use Atmel's toolchain.

And as always - if you need any help, or a bulk deal - please email support@pmdway.com