1. Input Voltage:3-5.5 V
2. Flash Memory:2 MB
3. Powered by RP2040
4. User controllable RGB LED
5. USB-C connector for power, programming, and data transfer

RP2040-Zero, A Low-Cost, High-Performance Pico-Like MCU Board Based On Raspberry Pi Microcontroller RP2040

Features: 

1. RP2040 microcontroller chip designed by Raspberry Pi in the United Kingdom
2. Dual-core Arm Cortex M0+ processor, flexible clock running up to 133 MHz
3. 264KB of SRAM, and 2MB of onboard Flash memory
4. USB-C connector, keeps it up to date, easier to use
5. The castellated module allows soldering directly to carrier boards
6. USB 1.1 with device and host support
7. Low-power sleep and dormant modes
8. Drag-and-drop programming using mass storage over USB
9. 29 × multi-function GPIO pins (20× via edge pinout, others via solder points)
10. 2 × SPI, 2 × I2C, 2 × UART, 4 × 12-bit ADC, 16 × controllable PWM channels
11. Accurate clock and timer on-chip
12. Temperature sensor
13. Accelerated floating-point libraries on-chip
14. 8 × Programmable I/O (PIO) state machines for custom peripheral support