Key benefits Simple file transfer: the board appears as a USB mass storage device for easy draganddrop downloading of files and firmware. performance, flexible processing: uses the RP2350B microcontroller with a dualarchitecture design and an Arm M33 core running up to 150 MHz, allowing you to switch between architectures to match application requirements. Reliable connectivity and memory: onboard reserved PSRAM and a reversible USB Type‑C connector for straightforward connection and reliable data access. Mobileready power and I/O: the onboard USB port can act as the interface between an external USB connection and the device, enabling card read/write access and supporting charging and discharging of the onboard battery for portable use. Features and functions RP2350B microcontroller chip with dual architecture and M33 processor core; clock up to 150 MHz for responsive execution and flexible mode switching. Recognized as USB mass storage for draganddrop file transfers and direct access to storage media. Onboard reserved PSRAM for additional working memory. USB TypeC connector (reversible) for easy plug orientation and reliable connections. Onboard USB port configurable to bridge USB and slave devices, allowing read/write access to inserted cards and handling battery charge/discharge functions suited to mobile scenarios. Compatibility and performance USB mass storage compatible with standard host operating systems for immediate file transfer without special drivers. Type‑C physical connector simplifies connection to modern hosts and power sources. 150 MHz M33 core provides a balance of performance and power efficiency for embedded and portable applications. Onboard PSRAM supports memoryintensive tasks without external memory additions. Practical applications Firmware development and testing: quickly copy firmware images or data files via USB mass storage and switch microcontroller architecture for compatibility testing. Portable data logging or media playback: use the board's USB/card interface to read and write storage media while charging or powering the onboard battery in field deployments. Mobile device prototyping and demonstrations: leverage the reversible Type‑C port and the board's charge/discharge capability to build and test batterypowered prototypes that need easy data access. What it solves Eliminates driver or toolchain delays by appearing as a standard USB mass storage device for immediate file transfer. Reduces hardware complexity by combining a performance RP2350B M33 processor, onboard PSRAM, and a Type‑C connector on a single board. Enables mobile workflows by supporting both data access (card read/write) and battery charging/discharging through the onboard USB interface. Note: Product functions and specifications reflect the RP2350Bbased board design: dualarchitecture RP2350B microcontroller with M33 core (up to 150 MHz), onboard reserved PSRAM, reversible USB Type‑C, USB mass storage support, and a USB port that bridges USB/slave interfaces while supporting card read/write and onboard battery charge/discharge for mobile scenarios.