This board uses the CH340g Usb Drivers available Here Under Programmers
Great little board entirely compatible with Arduino Software
Specifications:
Microcontroller Atmel ATmega328
Operating Voltage (logic level) 5 V
Input Voltage (recommended) 7-12 V
Input Voltage (limits) 6-20 V
Digital I/O Pins 14 (of which 6 provide PWM output)
Analog Input Pins 8
DC Current per I/O Pin 40 mA
Flash Memory 32 KB (of which 2KB used by bootloader)
SRAM 2 KB
EEPROM 1 KB
Clock Speed 16 MHz
Features:
Automatic reset during program download
Power OK blue LED on the bottom
Green (TX), red (RX) and orange (L) LED
+5V to AREF jumper
Auto sensing/switching power input
Small mini-B USB for programming and serial monitor
ICSP header for direct program download
Power OK blue LED on the bottom
Standard 0.1” spacing DIP (breadboard friendly)
Manual reset switch
Please note this is not a genuine Arduino Nano but it is entirely compatible with arduino software and has the same functionality as the Nano.
CH340G Driver Download link : http://www.wch-ic.com/download/list.asp?id=126 OR http://www.5v.ru/ch340g.htm
