It labels For Arduino Nano version 3.0, however you can still use this adapter for the older version (just have to remember that A0-A7 are in the reverse order). You can use this adapter to easily hook up Nano to an outside world via hook up wires.
This is the 20 CM 40 Pin Dupont Cable Color Jumper Wire, 2.54mm 1P-1P M/F, 40PCS of wire in each strip of cable. It is very Flexible and easily detachable to no. of wires according to your requirement. It is compatible with 2.54 mm spacing pin headers.