Tri-core ARM -A7 32-bit core, integrated , supports single-precision and double-precision floating-point operations Built-in ARM -MO MCU design, supports and AMP configurations Supports DDR2/DDR3/DDR3L memory interface expansion to meet a variety of expansion needs The low-speed interface adopts Rockchip Matrix 1O design, which allows rich multiplexing functions to share limited chip pins, making peripheral circuit adaptation more flexible Built-in audio and video codec, supports multiple audio input and output, and provides high-quality audio playback and recording functions Type:OnBoard EMMC-8GB 2.4GHz Wi-Fi6/Bluetooth 5.2/BLE 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- Network port: 10/100M Ethernet port Storage medium: 8GB eMMC Wireless communication: Onboard 2.4GHz Wi-Fi6/Bluetooth 5.2/BLE The product appearance and printed words depending on the batch, but this does not affect use. Colour:Black Material:PCB Package Contents: 1 * Development Board Kit 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.