1. Tri-core ARMCortex-A7 32-bit core, integrated , supports single- and double- floating-point operations 2. Built-in ARM -MO MCU design, supports and AMP configurations 3. Supports DDR3L memory interface expansion to meet various expansion needs 4. The low-speed interface adopts Rockchip Matrix 10 design, which allows rich multiplexing functions to share limited chip pins, making peripheral circuit adaptation more flexible 5. Supports multiple audio input and output, providing high-quality audio playback and recording functions Processor: Tri-core Arm -A7 (1.2GHz) + Arm -M0 Memory: Onboard 512MB DDR3L USB: Native USB OTG2.0x1 HUB expansion USB HOST2.0x2 Screen interface: MIPI 2- GPIO: 28 Rockchip Matrix IO pins Default storage medium: SPI NAND FLASH (256MB) Wireless communication: Onboard 2.4GHz Wi-Fi6/Bluetooth 5.2/BLE (The product printed words depending on the batch, but this does not affect use) Color:As Shown Material:PCB Package Contents: 1 * Development Board Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.