Features: Single-cores 32-bit cores, integrated for FPU. Built-in self-developed 4th generation NPU, support int4, int8, int16 mixed quantization, of which int8 power is 0.5TOPS, int4 power can reach OTOPS supports C, C++ and other development environment. Support GPIO, UART, I2C, USB and other interfaces for easy development and debugging. Built-in MCU design, support low power fast start, support 250ms fast capture at the same time, can achieve "1 second" to complete face recognition. Integrated with built-in POR and MACPHY. Specifications: Component:Plastic Size:Approx.6.85x3cm/2.7x1.18inch Package Includes: 1Pc Development Board note: 1.Please allow 1-2cm errors due to manual measurement, making sure that you not mind before order. 2.Due to the differences between different monitors, the picture may not reflect the actual of the item.