for 3B adopts a mini RK3566 quad core 64 bit processor with advanced 22nm technology, with a main frequency of up to 1.8GHz. It integrates an ARM Mali G52 2EE graphics processor, supports OpenGLES1.1/2.0/3.2, OpenCL 2.0, 1.1, and is embedded with high-performance 2D acceleration modules; An Al accelerator NPU with built-in 0.8Tops computing power, supporting one click conversion of mainstream architecture models such as Caffe/TensorFlow/TFLitR/ONNX/ Torch/Keras/Darknet; VPU Realizable Field 4K@60fps H. 265/264/VP9 video decoding and 1080P@100fps 265 video encoding, 1080P@60fpsH.264 Video encoding, supporting 8M ISP and HDR; Wi Fi 5, BT5.0, and BLE support. for 3B has quoted quite a lot of interfaces, including output, M.2 M-KEY, TF card slot, gigabit Internet port, USB2.0, USB3.0, 3.5mm headphone jack, MIPI DSl interface, eDP interface, MIPI camera interface, multi-functional 40 Pin expansion interface, etc., which can be widely used in TV box, high-end tablet, edge computing, face recognition, intelligent security, smart home and other fields, enabling rich AI applications and IoT scenarios. for 3B supports FOR Android 11, 22.04, 20.04, Debianl1, Debian12, Open Source Harmony 4.0 Beta 1, for Os (Arch), for Orange Pios (OH) based on Open Source Harmony, and more. Note: Due to different product batches, there are differences in appearance, does not affect the use of Colour:Blue Material:Plastic+Metal Package Contents: 1x Development Boards 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.