Teensy 4.1 USB Development Board + Ethernet Kit

Key Features Extreme 600 MHz Speed, with USB Host, SD Card, Memory Expansion Designed to bring all general purpose I/O pins to breadboard friendly pads on the outside edges Ethernet Option with Ethernet Kit included Can be programmed using the Arduino IDE with Teensyduino add-on NXP iMXRT1062 chip, the fastest microcontroller available today Pins not included Teensy 4.1 features the fastest micocontroller and an expanded set of powerful peripherals in a 2.4 by 0.7 inch form factor. It's designed to bring all general purpose I/O pins to breadboard friendly pads on the outside edges. Additionally, the bottom side of Teensy 4.1 has locations to solder 2 memory chips.Item Specifics ARM Cortex-M7 at 600 MHzFloat point math unit, 64 & 32 bits7936K Flash, 1024K RAM (512K tightly coupled), 4K EEPROM (emulated)QSPI memory expansion, locations for 2 extra RAM or Flash chipsUSB device 480 Mbit/sec & USB host 480 Mbit/sec55 digital input/output pins, 35 PWM output pins18 analog input pins8