Part Number: RP2350-USB-A RP2350A USB Mini Development Board, Based On Pi RP2350A Dual-core & Dual-architecture Microcontroller, 150MHz Operating Frequency RP2350A microcontroller chip designed by RPi in the United Kingdom. Adopts unique dual-core and dual-architecture design: dual-core Arm Cortex-M33 processor and dual-core Hazard3 RISC-V processor, flexible clock running up to 150 MHz 520KB of SRAM, and 2MB of onboard Flash memory. Type-C connector, keeps it up to date, easier to use. Castellated module allows soldering directly to carrier boards. USB 1.1 with device and host support Onboard 1x USB Type A expansion port via PIO, compatible with USB 2.0 / 1.1 transmission. Low-power sleep and dormant modes. Drag-and-drop programming using mass storage over USB. Adapting 15 × multi-function GPIO pins