Powerful core performance: Features RA4M1 MCU based on 32-bit ARM Cortex-M4 architecture, operating at 48MHz with built-in FPU, 256KB flash memory, 32KB SRAM, and 8KB EEPROM. Rich hardware resources: Includes 14-bit ADC, 12-bit DAC, CAN bus controller, USB 2.0 interface, and onboard RGB LED. Enhanced security features: Supports firmware encryption, secure boot, and anti-tampering functions to improve data and system security. Efficient software ecosystem: Compatible with Arduino IDE for quick development and debugging. Compact design: Measures 18 x 23.5 mm. Chemical compliance: None. Model Number: RA4M1-Zero Mini Development Board. Specifications: B: Pin header version / A: SMD version. Color: As shown. Material: PCB. Package Contents: 1 x Development Board. Note: Light reflection and display differences may cause slight color variation between the image and the actual product. Measurement tolerance is ±1–3mm.