CH340G replace the Atmega 8U2/16U2. CH340G Driver Download link, please copy the link and paste in browser: http://www.5v.ru/ch340g.htm
Clock Speed:16 MHz EEPROM:4 KB SRAM:8 KB Flash Memory:256 KB of which 8 KB used by bootload
Analog Input Pins:16 Digital I/O Pins:54 (of which 14 provide PWM output) DC Current for 3.3V
Package Included:1 x ATmega2560-16AUCH340G Board +1 x USB Cable
Shipping time:7-17 business days to arrive.

Technical Details

Size (LWH): 5.6 inches, 3 inches, 0.7 inches
Product Details
Product Dimensions: 5.6 x 3 x 0.7 inches
Shipping Weight: 0.2 pounds (View shipping rates and policies)
ASIN : B00SFICZUM