"This custom designed fan duct was specifically created for Antminer bitcoin miners, but will work with any 120 mm fan. As miners, we know how important it is to cool mining equipment and keep temperatures low. Just replace the fan guard with our fan duct using your existing screws and see results immediately. The duct was designed to fit standard 4 in vent hose and to keep air moving. Does not include 4 in vent hose or clamp. Will not work with Antminer S7 single fan design. Depending on color availability, item may be black or blue. We have worked hard to develop a quality and durable product. Please be aware of other sellers because we can not guarantee their build quality or material. *Antminer is a registered trademark of Bitmain Technologies.
We are not affiliated with Bitmain Technologies. "