Its pretty simple a 120MM to 4 Inch duct. Just bolt this bad boy on and your done! Works on AntMiners!!!!
If you need a bunch them right now I sell them on E-Bay check out my store here.
I usually keep between 60 and 100 in stock. The color you ask? Black! If you want to contact me an email at:
Ok now for the not fun part -- you are not authorized to resell these. The part is embedded with a registered trademark and yes I do have a lawyer. The amount of rampant theft is getting ridiculous -- this why I have not published the 6 Inch part. If you want to sell these -- draw your own version, it literally takes 10 minutes.
For those of you printing for you, your buddies farm or local area -- keep rocking out.