Elegoo EL-CB-001 UNO R3 Board ATmega328P ATMEGA16U2 with USB Cable for Arduino New improvement: clearly printed on the female header connector, more precise and easier to use the wire The Uno now uses an ATMega16U2 instead of the ATMega8U2 chip. Faster transfer rates and more memory Control using ATMEL ATMEGA328P chip 100 percent compatible with the official version, for Arduino uno R3 We have always cared about the customer experience and improve the product function details