The Teensy 4.1 Without Ethernet (Headers) combines powerful real-time performance with ease of integration. Powered by an ARM Cortex‑M7 running at 600 MHz, this board delivers ample computing headroom for demanding embedded applications. With 8 MB flash, 1 MB RAM, and optional memory expansion, it supports advanced multimedia, control, and automation workflows.
Soldered headers provide plug‑and‑play compatibility with standard 0.1″ breadboards and breakout boards—no soldering required. The board includes a USB host port and built‑in microSD socket for external storage and device communication. Ethernet is intentionally omitted to reduce cost and size; if networked use is required, an external Ethernet PHY and RJ45 magnetic jack can be added.
With 55 total GPIO pins, support for SPI, I²S, S/PDIF, SDIO, multiple serial channels, PWM, and CAN interfaces, the Teensy 4.1 is optimized for robotics, IoT, digital audio, sensor fusion, and industrial control applications. Power features like dynamic clocking, push‑button power off, and RTC backup make it ideal for battery‑powered or low‑power designs.