Item Name: Micro Extended Compatible Upgraded Development Board ATmega328 NANO V3.0. Size: as the pictures showColor: as the pictures showWeight: about 6-7gType: development boardMaterial: electronic component+ plasticFeatures:1. Power via USB or External Source - 5v or 7-35v (12v or less recommended,automatic selection)2. On-board 500ma 5V Regulator3. Built-in USB4. 26 I/O Pins (2 are used for USB only if your program actively communicates over USB, otherwise you can use all 6 even if you are programming via USB)5. 8k Flash Memory (about 6k after bootloader)6. I2C and SPI7. 26-PWM (26 pins with Software PWM,only two (D9,D10) with hardware PWM )8. ADC on 8 pinsPackage Include: 1x Development BoardNotes: The product may have an error of 1-2cm,and the color may look a little different from the picture,pls understand. *