Their flagship line, the Omega series—begun in 2015 with the original Omega—evolved into the more powerful Omega2 series. These boards are renowned for being “the world’s smallest Linux server,” packaged in credit-card-sized form factors and designed to bridge the gap between affordability, programmability, and connectivity. The Omega2 Pro stands as the most capable member of this family, offering integrated Wi‑Fi, robust onboard storage, and seamless expansion capabilities. The Onion Omega2 Pro is a powerful yet compact IoT-enabled Linux board engineered for rapid prototyping and deployment. Its built-in 8 GB storage, expandable I/O, Wi‑Fi capabilities, battery support, and rich software stack—including OnionOS—make it a standout choice for makers and developers seeking a flexible, standalone development platform Here