Microprocessor: Arduino MKRZeroProcessor Name: SAMD21 Cortex-M0+ 32 bit low power ARM MCURAM: 32KB SRAM MemoryStorage: 256KB in-system self-programmable FlashType: Single-cycle hardware multiplierClock: Internal and external clock options with 48MHz Digital Frequency Locked Loop (DFLL48M) and 48MHz to 96MHz Fractional