Features: for Banana Pi BPI-M4 Zero board,a successor model to M2Zero, with significant performances improvement SOC upgraded to H618, frequency increased by 25% Upgraded memory to DDR4, quadruple capacity, and add 8GeMMC. Supports 5Ghz and the USB has also been upgraded to typeC Its external size and 40pin connector are the same as RPiZeroW, and it will be suitable for most of ZeroW board casings and accessories. Specifications: Material:Plastic For BPI-M4 Zero Development Board Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 1cm errors due to manual measurement. Package includes: 1Set For BPI-M4 Zero Development Board Kit