ITEM NAME:5PCS Nano V3.0 ATmega328P controller compatible for arduino nano CH340 USB Z6A1 5PCS Nano V3.0 ATmega328P controller compatible for arduino nano CH340 USB Z6A1 CH340G Replace FT232RL Micro-controller ATmega328P Using Atmel Atmega328P-AU MCU, Support ISP download; Support USB download and Power. Support for external 5V ~ 12V DC power supply; Support power supply by 9V battery. Material: ccl COLOR: blue Microcontroller Atmel ATmega328 Operating Voltage (logic level): 5V Input Voltage (recommended): 7V ~ 12V Input Voltage (limits): 6V ~ 20 V Digital I/O Pins: 14 (of which 6 provide PWM output) Analog Input Pins: 8 DC Current per I/O Pin: 40mA Flash Memory: 32KB (ATmega328) (of which 2 KB used by bootloader) SRAM: 2KB (ATmega328) EEPROM: 1KB (ATmega328) Clock Speed: 16MHz Note: This version is not included the USB cable. Had change the USB chip, improve the download speed and stability of WIN7/WIN8 Package includes: 5 x Nano V3.0 ATMEGA328P Module Board Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..This version is not included the USB cable. Had change the USB chip, improve the download speed and stability of WIN7/WIN8. Clock Speed: 16MHz. DC Current per I/O Pin: 40mA.