Adafruit METRO M0 Express - ATSAMD21G18 Microcontroller Board I2C On-chip programmable LDO to generate

On-chip programmable LDO to generate core voltage

You can also pick up some double-sided foam tape from a hardware store to mount these

Like all Feather 32u4's you get:

The Adafruit QT Py ESP32-S3 WiFi development board offers a powerful embedded computing solution

Adafruit METRO M0 Express - ATSAMD21G18 Microcontroller Board I2C On-chip programmable LDO to generateThe Adafruit METRO M0 Express is a powerful microcontroller board designed for CircuitPython and Arduino IDE, featuring the ATSAMD21G18 ARM Cortex M0+ running at 48 MHz with 3. 3V logic. This board offers a significant upgrade over the original Metro 328, with 256KB of flash memory, 32KB of RAM, and built in USB support without the need for an external serial converter chip. Power supply via 7 9V DC jack with on off switch or micro USB 5V source;