Features: One router board base on MT7981B and MT7976C Double-band WiFi 6 chipset. One is device base on the 820 that have WiFi 6, Double-band, 33/22, 1 x 2.5Gbit WAN, 1 x 1Gbit LAN, 1GB DDR4, 256 MiB NAND, 16 MiB NOR, M.2 and USB2.0. One use MT7981B with a Double-arm a53 cores at 1.3GHz, 1GB DDR4 and 256 MiB SPI NAND storage. It also integrates 16 MiB of additional protective storage as a systems, Double storage hardware to ensure that the onboards system is unbrickable, and finally integrated M.2. 2230/2242 NVMe PCIe 2 X1 port can be used to add external storage. With a battery holder for internal clock, One offers a USB2.0 and expansion port to provide more interfaces to a host of technical possibilities. One is the first board design with opensource communtity.and collaboration with Banana Pi that will also handle manufacturing and distribution of the router board. Specifications: Component:Plastic Size:Approx.148mm/5.83inch 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. Package includes: 1Pc Development Board