The BB-WLNNA and ABDNA Series products have three key features. With fast roaming speeds up to 200 ms, allows for uninterrupted communication without any intermediate host PCs and software programming. Client roaming can switch between the APs in the factory. This provides enhanced connection reliability, enabling devices to roam freely within a wireless network without loss of data or connection. Multiple host interfaces, suitable for different traditional machines, allow software developers to configure software for any combination of UART, Ethernet, Wi-Fi and serial interfaces. Each individual port can be independently configured. Flexible and easy to integrate and configure through CLI commands, supporting for both serial and Ethernet to Wi-Fi 2.4 GHz or 5 GHz communications. OpenWrt (with the 128 MB RAM, 32 MB Flash memory size) has sufficient RAM for stable operation and allows the development of functions, build customized Image.