Find the Right Shroud for Your Bitcoin Miner
Route the main ASIC exhaust into standard 6-inch or 8-inch duct. Start with your miner brand, count the exhaust fans, then measure the fan frame. The right fit takes less than a minute to identify.
Choose by hardware, not a giant model-name list
Antminer model names change. The exhaust hardware is what determines fit. If your Antminer has two 120mm exhaust fans, the dual 120mm shroud fits. If it has two 140mm exhaust fans, the dual 140mm shroud fits.
Choose the brand
Antminer, Whatsminer, or Canaan Avalon Q.
Check the exhaust
Count the fan openings on the hot-air side and measure one fan frame edge to edge.
Match your duct
Choose a 6-inch or 8-inch outlet based on the shroud options and the duct system you are building.
Shroud compatibility chart
| Your miner | What you see | Correct shroud | Duct outlet |
|---|---|---|---|
| Antminer | Two 120mm exhaust fans | Dual 120mm V4 | 6 or 8 inch |
| Antminer | Two 140mm exhaust fans | Dual 140mm | 8 inch |
| Antminer S9-style | Single OEM fan to capture | Single-fan slip-on | 6 inch |
| Whatsminer | Main ASIC exhaust only | Whatsminer slip-on | 6 or 8 inch |
| Canaan Avalon Q | Avalon Q rear exhaust | Avalon Q exact-fit shroud | 6 or 8 inch |
This finder focuses on the main ASIC exhaust. PSU-capture shrouds are intentionally excluded. Measure the outside edge of the fan frame, not the blade opening, and check the product page before ordering.
Antminer exhaust shrouds
Start with fan size
Do not choose by S-series model name alone. CryptoCloaks dual-fan shrouds are matched to the physical fan configuration: every Antminer with two 120mm exhaust fans uses the dual 120mm design; every Antminer with two 140mm exhaust fans uses the dual 140mm design.
Dual 120mm to 6-inch V4
Captures both 120mm exhaust fans into one standard 6-inch duct connection. Uses the miner’s stock fan screws.
Dual 120mm to 8-inch V4
The same dual-120mm miner fit with an 8-inch duct outlet for an 8-inch ventilation setup. Uses stock fan screws.
Dual 140mm to 8-inch
Built for Antminer models with two 140mm exhaust fans. Routes both fan openings into one 8-inch duct outlet using the stock screws.
Single-fan slip-on to 6-inch
A clip-on option for the OEM fan used on compatible S9-style setups. Confirm the product-page fit before ordering.
Whatsminer main-exhaust shroud
This slip-on design captures the main ASIC exhaust without adding a PSU-capture section. Select the 6-inch or 8-inch outlet on the product page.
Whatsminer slip-on shroud
Slip-on installation with 6-inch and 8-inch outlet options. Check the fit details and choose the outlet size on the product page.
Canaan Avalon Q exact-fit shroud
The original CryptoCloaks Avalon Q exhaust-shroud design routes the miner’s rear exhaust into standard flex duct. Choose the outlet diameter on the product page.
Avalon Q exhaust shroud
Exact-fit PETG exhaust adapter available with 6-inch or 8-inch outlet options. The 8-inch option is the straightforward choice for a new full-size duct setup.
6-inch or 8-inch?
Match the shroud to the duct system you are actually building. Diameter is only part of the setup; duct length, bends, restrictions, and any inline fan also affect airflow.
When your existing ventilation system is already 6 inch, the run is appropriate for that system, and your selected shroud is offered with a 6-inch outlet.
When starting a new higher-volume duct run or when your selected miner shroud is designed around an 8-inch outlet. Larger diameter provides more cross-sectional duct area.
Install and operate responsibly
- Power down and unplug the miner before installing or removing a shroud.
- Verify fan count, fan-frame size, mounting method, and duct diameter before ordering.
- Avoid crushed duct, tight bends, undersized inline fans, or other restrictions.
- Monitor miner temperatures and fan behavior after changing the exhaust path.
- The shroud routes exhaust; it does not replace the miner’s stock cooling system.
ASIC miner shroud questions
Which CryptoCloaks shroud fits my Antminer?
Count the exhaust fans and measure one fan frame edge to edge. Two 120mm fans use the CryptoCloaks dual 120mm shroud, available with a 6-inch or 8-inch outlet. Two 140mm fans use the dual 140mm to 8-inch shroud.
Do I need to know the exact Antminer model?
The physical fan configuration is the deciding factor for these dual-fan Antminer shrouds. Confirm that the exhaust side has two 120mm or two 140mm fans, then choose the matching design.
Does this page include PSU-capture shrouds?
No. This finder is intentionally limited to shrouds that route the main ASIC exhaust. It does not include products designed to capture PSU heat.
Are the shrouds printed in PETG?
Yes. The shrouds shown in this finder are printed in PETG. Confirm current color and configuration options on each product page.
Should I choose 6-inch or 8-inch duct?
Choose the outlet that matches a properly planned ventilation system. Eight-inch duct has more cross-sectional area, while six-inch may match an existing compact setup. Run length, bends, restrictions, and inline-fan capacity matter too.
Send us a photo of the exhaust side
Include the miner model, the number of exhaust fans, a fan-frame measurement, and the duct size you want to use. We will point you to the correct non-PSU shroud.