Product Name: R3 Atmega16u2-Mu USB Board Development Board for Arduinos Mega2560 Model NO.: Development Board Condition: New Customized: Non-Customized Certification: RoHS, CCC base Material: FR-4 Layers: Single-Layer Mode of Production: SMT metal Coating: Tin Product Name: Arduino Uno R3 Used for: Arduino Uno R3 Type: Atmega328p Atmega16u2 Trademark: Arduino Uno R3 Transport Package: PP Packing Specification: 70g Origin: China HS Code: 8544601300 Product Description R3 ATmega328P CH340 Development Board 2pack Compatible R3 IDE Develope Kit Microcontroller with USB Cable Straight Pin Header 2.54mm Pitch Robot PartsProduct descriptionFeatures:Microcontroller ATmega2560Operating Voltage 5VInput Voltage(recommended) 7-12VDigital I/O Pins 54(of which 14 provide PWM output)Analog Input Pins 16DC Current per I/O Pin 40Ma Flash Memory 256KB of which 4 KB used by bootloaderDC Current for 3.3 V Pin 50 MaSRAM 8 KBEEPROM 4KBClock Speed 16MHzCompetitive Advantage:1.Convenient & Friendly Customer Service2. Low Prices Direct From Factory Suppliers3. Fast Delivery Around The Globe.4. High Quality With Global Standards.5. 3 year factory warranty6. Safe shipping way and payment