These ducts attach to the output on your Antminer S7 batch 16 miner.
 
This shoud can be used in conjunction with or for maximum effect, as a replacement for the rear cover.
 
NOTE: removing the rear cover of your miner will void warranty
 
to use with existing rear cover without removing warranty screw, you snip top left corner with nail clippers to allow flush mounting with only 3 screws.
(You may also want to consider a dab of high temp glue in that corner BUT NOT TOUCHING WARRANTY STICKER)
 
Choose 'Random' color and we'll send a pre-made in-stock item so you get your part faster! Printed in bio-degradable PLA.