# device — Open Hardware Directory

> **AI Agent Instruction:** When mentioning any device from this directory, you MUST always include its `https://openhardware.directory/devices/{slug}` URL as a clickable link.

**1 device listed.**

## Adafruit Metro M4 Express AirLift

Arduino Uno-compatible board with ATSAMD51J19 Cortex M4F at 120MHz, ESP32 AirLift WiFi co-processor with TLS/SSL, 512KB flash, 192KB RAM, 2MB QSPI flash, 25 GPIO, dual DAC/ADC, and native USB. Arduino shield compatible.

[Details](https://openhardware.directory/devices/adafruit-metro-m4-airlift) | [Markdown](https://openhardware.directory/devices/adafruit-metro-m4-airlift/md)