ARDUINO UNO R3 (CH340G) (NO USB CABLE) (Compatible) 

Overview

The Arduino Uno (compatible version) is a microcontroller board based on the ATmega328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

Specifications

Microcontroller : ATmega328

Operating Voltage : 5V

Input Voltage (recommended) : 7-12V

Input Voltage (limits) : 6-20V

Digital I/O Pins : 14 (of which 6 provide PWM output)

Analog Input Pins : 6

DC Current per I/O Pin : 40 mA

DC Current for 3.3V Pin : 50 mA

Flash Memory : 32 KB (ATmega328) of which 0.5 KB used by bootloader

SRAM : 2 KB (ATmega328)

EEPROM : 1 KB (ATmega328)

Clock Speed :  12 - 16 MHz

Contents:

1 x Arduino Uno (Compatible)

1 x USB Cable

Please Note: This is the compatible version, and is not an original Arduino Uno.