One day someone there asked me one question "How to chain NF2s together and access them by one USB interface?"

I had a look at my NF2 board, and found out how to do that. Let me show you the picture:


WARNING HERE:  I HAVE TO SAY ONE THING THAT I DO NOT REALIZE NF2 CHAIN HERE BECAUSE I HAVE ONLY ONE
BF2. SO YOU CAN TAKE THIS FOR REFERENCE ONLY. NO GUARANTEE AGAINST DESTROYING DEVICES...https://dl.dropboxusercontent.com/u/23682587/nf2-chain.jpg

1. unsolder the parts in orange rectanges on 2nd NF2. ( 1st NF2 does not need any modified, only 4 flying wires later...)
2. there are 4 red circle on 1st NF2, and there are 4 blue circle on 2nd NF2. Connect red 1 to blue 1, R2 to B2, R3 to B3,
    and R4 to B4 by flying wires. Note: make sure wires 1 2 3 are the same length.
3. if you want to chain the 3rd NF2, unsolder the parts on 3rd NF2, and connect Red circles on 2nd NF2 to Blue circles on 3rd NF2,
   and so on...
4. if you plug these chained NF2 to the same USB hub, GND plan should be the same. No GND wire should jump each other.
    Yellow circle in the picture is GND point I use.

AGAIN HERE:
WARNING HERE:  I HAVE TO SAY ONE THING THAT I DO NOT REALIZE NF2 CHAIN HERE BECAUSE I HAVE ONLY ONE
BF2. SO YOU CAN TAKE THIS FOR REFERENCE ONLY. NO GUARANTEE AGAINST DESTROYING DEVICES...


You do not populate the parts in oragne rectangles on the rest 7 NF2 boards if you
have DIY kit from vs3... and you can save a little bit of money by this.