Features: Uses the RP2350A microcontroller chip developed by Unique two-core, two-architecture. Equipped with a two-core ARM CortexM33 processor and a two-core Hazard3 RISC-V processor, running at clock frequencies up to 150MHz Builts-in 520KB srams and 4MB on-chip. Flash Adopt Type-C interface, keep up with the trend of the times, no need to worry about plugging in the right or wrong direction. Stamp hole design, can be directly welded and integrated into the base plate designed by the user Supports USB1.1 host and device. Supports low power sleep and hibernation modes Drag-and-drop downloading via USB recognized as mass storage RP2350A's 29 GPIO pins are brought out (20 can be brought out through pin headers, the rest can only be brought out by soldering) 2 SPI, 2 I2C, 2 UART, 4 12-bit ADC, 24 controllable. PWM channels Precise on-chip clocks and timers Builts-in temperature sensor On-chip accelerated floating point library 12 Programmable I/O (pios) states machines for custom peripheral support. Specifications: Material: PCB Style: Unwelded, Welded(optional) Size: 23.5x18mm/0.93x0.71inch Package Includes: 1Set RP2350 Zero Mini Board note: Please allow 1-3mm error due to manual measurement. make sure you not mind before bid. Due to the differences between different monitors, the picture may not reflect the actual of the item. Thank you!