100% brand new and high qualityDescriptions: . Features: Small form-factor development board for ATMEGA32U4 microcontroller (Compatible with Leonardo R3). The ATmega32u4 microcontroller has an USB interface without the need for a Serial UART-to-USB adapter. A fantastic feature of this board is that it plugs right into the USB port of your computer, without the need of a cable, so it's ready to program and run your code without the need of additional components or accessories. Operating Voltage 5V DC,Clock Speed 16 MHz,PWM Channels 4, Analog Input Channels 5,Digital I/O Pins 10. UART 1,I2C 1,Micro USB 1,Flash Memory 32 KB of which 4KB used by bootloader,SRAM 2.5 KB,EEPROM 1 KB Specifications: Microcontroller:ATmega32u4 Clock Speed: 16 MHz Working Voltage: 5V DC PWM Channels : 4 Clock Speed : 16MHz Digital I/O Pins : 10 Analog Input Channels : 5 I2C : 1 UART : 1 SRAM : 2.5KB Micro USB : 1 Size :approx 41.93x16.27x8.12mm/ 1.65x 0.64x0.32in (15g) Note: Due to the problems of lighting effects and shooting angles, there will be certain tolerances in the product, please understand. Please allow 0-1cm error due to the manual measurment. Package Includes: 1 PC x Virtual keyboard Badusb Leonardo R3 USB