Designed for Cardputer Specifically with plug-and-play Grove connection. No jumper settings required-quick connection and stable operationDual Wireless Protocol Support Integrated with 2.4GHz NRF24 and Sub-G 433MHz CC1101 modules, this 2-in-1 board enables short and long-range wireless communication for various IoT applicationsCompatible with for firmware. Easily configure modules via -CONFIG menu. Supports CC1101 (legacy) and NRF24 protocols for seamless integrationPhysical Module Switch Switch between 2.4GHz and 433MHz modes with a built-in hardware toggle. No need to change hardware-just switch and goReliable & Stable Performance Optimized PCB design ensures minimal interference and improved signal strength, perfect for DIY projects, sniffing, wireless control, and remote sensorsNotice:For Educational and Research Purposes Only.Color:BlueMaterial:PCBPackage Contents:1 set * for CardputerOnly the above package content, other products are not included.Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.