Tri-core ARM -A7 32-bit core, integrated , supports single-precision and double-precision floating-point operations. Built-in ARM -M0 MCU design, supports and AMP configurations. Built-in 128MB DDRL3, can meet the application requirements of multi-core operation. The low-speed interface adopts Rockchip's Rockchip Matrix IO 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. Processor: Tri-core Arm -A7 (1.2Ghz) + Arm -M0 Memory: 128MB DDR3L USB: USB OTG2.0 x 2 Screen interface: MIPI 2- GPIO: 24 Rockchip Matrix IO pins Network port: 10/100M Ethernet controller Default storage medium: SPI NAND FLASH (256MB) The product appearance and printed words depending on the batch, but this does not affect use. Specification:B:welded Colour: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.