We produce this board based on the open-source arduino official schematics.The printing or color on the board may be different from each production date, but the function is exactly the same.
Digital I/O Pins:54 (of which 14 provide PWM output)
Flash Memory:256 KB (ATmega2560) of which 4KB used by bootloader
Analog Input Pins:16
Input Voltage (recommended):7-12V and Input Voltage (limits):6-20V

Technical Details

Product Details

Package Dimensions
Width : 3.9 inch
Height : 1 inch
Length : 5.5 inch

Shipping Weight: 2.4 ounce (View shipping rates and policies)

ASIN : B00KG3SBE8