A single fan shroud for the intake or exhaust side of your miner. Mounts over the existing fan and directs the airflow through a duct hose exactly where you need it: outside, into an adjacent room, or for heat recovery during winter.
At a Glance
Contents: 1× fan shroud, 1× screw set (8 screws), 1× hose clamp
Sizes: Available in 6 inch (150mm) or 8 inch (200mm)
Use case: Intake or exhaust — you choose the side
Installation: Remove fan grille, place shroud over fan, secure with 8 screws, attach duct hose and tighten clamp
Fans: Stay mounted — the shroud fits over the existing fan
What You Need This Shroud For
In standard operation, your miner blows hot exhaust air freely into the room. With the shroud, you connect one side to a duct hose and direct the air where you need it. Most commonly used on the exhaust side to duct heat outside. But it works equally well on the intake side to supply fresh air from outside. To cover both sides at once, we recommend the 2-piece set.
6 Inch or 8 Inch?
6 inch (150mm) is more compact and works for most setups with short, direct duct runs.
8 inch (200mm) offers less airflow resistance — fans run quieter, work less hard and last longer. Recommended for duct runs over 2 meters, bends or continuous operation.
Compatible Miners
Fits all Antminer models with 2× 140mm fans: S21+, S21 Pro, S21 XP, S23.
Not compatible with S19, S21 (base model) or older S19 variants (different fan size, 120mm) — find the matching shroud here.
Material and Quality
Made from PETG — heat-resistant, durable, and printed as solid material. Designed and manufactured in Germany.
Frequently Asked Questions
Do I need one or two shrouds?
One shroud is enough if you only want to duct the exhaust side outside. To cover both sides at once, there's the 2-piece set — more affordable than buying two singles.
Which duct hose do I need?
A flexible aluminum duct hose matching your chosen size — 150mm diameter for 6 inch, 200mm for 8 inch. Available in our hose selection or at your local hardware store.
Does this shroud fit the standard S21?
No. The Antminer S21 (base model) has 120mm fans, while the S21+/Pro/XP series uses 140mm. For the standard S21 you need the S19/S21 shroud.
Does this shroud fit Whatsminer models?
No. While Whatsminer models also use 140mm fans, they have a different case design. Find the Whatsminer shroud here.
Product safety information
Manufacturer information:
Shortfiat UG (haftungsbeschränkt)
Blankenauer Str. 61
Chemnitz, Deutschland, 09113
gpsr@shortfiat.de
