Without changing the performance of NANO and ATMEGA328P-AU master chip, we upgrated the USB chip to improve the download speed and the stability for win7 and win8 use.

Features:
CH340G Replace FT232RL, using Atmel Atmega328P-AU MCU.
1 pairs of TTL level serial transceiver ports RX / TX.
There is bootloader installed in it.
Supports ISP download.
Supports USB download and Power.
Comes with a USB Cable.
Power by: External DC 5V ~ 12V or 9V battery.

Specifications:
Operating Voltage (logic level): 5V
8 analog inputs ports: A0 ~ A7
14 Digital input / output ports: TX, RX, D2 ~ D13
6 PWM ports: D3, D5, D6, D9, D10, D11

Package includes:
1 x Nano V3.0 ATmega328P Module board for Arduino
1 x USB Cable

• Without changing the performance of NANO and ATMEGA328P-AU master chip, we upgrated the USB chip to improve the download speed and the stability for win7 and win8 use.
• CH340G Replace FT232RL, using Atmel Atmega328P-AU MCU.
• 1 pairs of TTL level serial transceiver ports RX / TX.
• There is bootloader installed in it. Supports ISP download. Supports USB download and Power. Comes with a USB Cable.
• Power by: External DC 5V ~ 12V or 9V battery.

Without changing the performance of NANO and ATMEGA328P-AU master chip, we upgrated the USB chip to improve the download speed and the stability for win7 and win8 use.XCSOURCE