Excellent performance

* AllWinner H616/H618 Quad-core Cortex-A53 high-performance processor
* Dual-band WiFi + Bluetooth 5.0
* Size compatible with Raspberry Pi

Customized Debian system

Walnut Pi customized version of Debian, experience more like Windows
Lowering the user threshold

Color 40P pin header

Convenient wiring to avoid short circuit caused by mistake