The RADXA ROCK 4 Model B is a high-performance single board computer designed for embedded Linux development, IoT, and business-oriented applications. This board-only variant includes built-in dual-band Wi-Fi (2.4GHz / 5GHz) and Bluetooth 5.0, making it suitable for wireless-enabled systems.Powered by the Rockchip RK3399 64-bit hexa-core processor, the ROCK 4 Model B combines dual Cortex-A72 cores with quad Cortex-A53 cores to deliver strong computing performance and energy efficiency. The integrated Mali-T860MP4 GPU provides hardware-accelerated graphics for multimedia and display-based applications.The board supports LPDDR4 memory, optional industrial-grade eMMC storage, HDMI 2.0 output up to 4K@60Hz, USB 3.0, USB 2.0, Gigabit Ethernet, MIPI display and camera interfaces, and a 40-pin GPIO expansion header. It is compatible with popular Linux distributions such as Debian and Ubuntu.RADXA ROCK 4 Model B is an excellent choice for developers, system integrators, and OEMs looking for a powerful wireless SBC for embedded and industrial projects.