SparkFun Teensy 4.1 ARM Cortex-M7 Processor at 600MHz with a NXP iMXRT1062 chip

Teensy 4.1 It features an ARM Cortex-M7 processor at 600MHz, with a NXP iMXRT1062 chip, the fastest microcontroller available today. 1024K RAM (512K is tightly coupled) 8 Mbyte Flash (64K reserved for recovery & EEPROM emulation) 55 Total I/O Pins 3 CAN Bus (1 with CAN FD) 2 I2S Digital Audio 1 S/PDIF Digital Audio 1 SDIO (4 bit) native SD 3 SPI, all with 16 word FIFO 7 Bottom SMT Pad Signals 3 SPI, all with 16 word FIFO 7 Bottom SMT Pad Signals 8 Serial ports 32 general purpose DMA channels 35 PWM pins 42 Breadboard Friendly I/O 18 analog inputs Cryptographic Acceleration Random Number Generator RTC for date/time Programmable FlexIO Pixel Processing Pipeline Peripheral cross triggering 10 / 100 Mbit DP83825 PHY (6 pins) microSD Card Socket Power On/Off management