Designed specifically for M5Stack Cardputer ADV with Bruce firmware. Enhanced power stability for better performance consistency with ME6211 low-noise regulation and 100µF tantalum energy storage. SPI/GPIO protection for better host interface safety, enhancing fault tolerance and reducing the risk of damage. Signal-enhanced design with optimized RF/antenna path for improved stability and consistency. Additional features include improved transient current handling and voltage stability, helping the module maintain consistent behavior under high-load scenarios. Made for Cardputer ADV + Bruce (Setup Required). Please configure brucepins.conf before use and reboot to apply settings. Not compatible with Cardputer V1.1 or other non-ADV/older models. Color: Green Material: PCB Package Contents: 1 set of for M5Stack Cardputer ADV RF Only 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.