Tri-core ARM Cortex-A7 32-bit core, integrated VFP, supports single-precision and double-precision floating-point operations. Built-in ARM Cortex-M0 MCU design, supports SMP and AMP configurations. Supports DDR2 / DDR3 / DDR3L memory interface expansion to meet a variety of expansion needs. 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 codecs, supports multiple audio inputs and outputs, and provides high-quality audio playback and recording functions. Due to different batches, there may be differences in product appearance, color, and printed text, which will not affect the use. Color: As Shown Material: PCB Package Contents: 1 x RK3506B 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.