Antminer Dual 120 fan to 8 Inch Shroud: 120mm V4 PETG Exhaust Adapter
Your Antminer is pushing hot exhaust into the room instead of a duct, and that thermal bleed is costing you in ambient temps, noise, and fan strain. The Antminer dual 120mm 8 inch shroud from CryptoCloaks solves that problem directly: one PETG adapter, both 120mm fan exits captured, single 8-inch duct outlet, zero extra hardware.
Table of Contents
- What Is the Antminer Dual 120mm 8 Inch Shroud
- Why CryptoCloaks
- Specs and Compatibility
- How It Compares
- FAQ
What Is the Antminer Dual 120mm 8 Inch Shroud
The Antminer dual 120mm 8 inch shroud is a purpose-built ASIC miner duct adapter that captures both 120mm exhaust fan ports on your Antminer and routes them into a single standard 8-inch duct outlet. Instead of dumping heat into your mining space, this shroud directs that airflow into your ventilation setup cleanly and permanently. The V4 design is the most refined iteration to date, with tighter tolerances and a consistent fit across the full range of dual-fan Antminer units.
Home miners running Antminers in garages, basements, closets, or dedicated mining rooms understand the problem firsthand. Unducted ASIC exhaust recirculates back toward the intake side of the machine, raises ambient temps, and forces your cooling to compensate for heat the miner itself is generating. A proper bitcoin miner exhaust duct connection cuts that cycle off at the source. This shroud is the interface that makes that connection clean and repeatable.
The 8-inch duct outlet matters for airflow capacity. Smaller duct connections create backpressure that loads the stock fans harder than necessary. A full 8-inch diameter opening lets your inline fan pull exhaust freely, keeping the miner at optimal operating temperature without adding stress to the factory fan assembly.
Why the CryptoCloaks Antminer Dual 120mm 8 Inch Shroud Holds Up
CryptoCloaks has been in the bitcoin mining accessories space since 2017. Ricky, the founder, personally picks, prints, and ships every order from his shop in America. The Antminer dual 120mm 8 inch shroud you receive has been handled and inspected by the person who designed it, not pulled from a warehouse shelf by someone who has never touched a miner.
CryptoCloaks prints this shroud in PETG, and the material choice is deliberate. ASIC exhaust runs hot over sustained periods. PLA creeps and deforms under that kind of prolonged heat exposure. PETG resists warping through continuous high-temperature cycles, which is exactly what an Antminer fan shroud PETG build requires in production use. A verified buyer confirmed this through real-world operation: no deformation, no sag, consistent performance across sustained ASIC heat cycles. Field validation from someone running the part beats a spec sheet every time.
Installation requires no additional hardware. The shroud mounts using the stock Antminer fan screws already on your machine. No adapter kits, no drilling, no new fasteners. If your inline duct setup runs a smaller diameter, the Antminer Dual 120mm to 6 Inch V4 shroud offers the same PETG construction in a 6-inch outlet format.
Specs and Compatibility
- Material: PETG (warp-resistant, heat-stable)
- Fan Inlet: Dual 120mm
- Duct Outlet: 8 inch
- Mounting Hardware: Stock Antminer screws (no extras needed)
- Weight: 8 oz
- Dimensions: 10 × 8 × 7 in
- Available Colors: White, Orange, Black
- Version: V4
- SKU: CC-MA-ANTMDUAL120M-2
- Price: $22.99
This 120mm fan to 8 inch duct adapter fits any Antminer with a dual 120mm rear exhaust fan configuration. The S19 generation, including the S19, S19 Pro, S19j, S19j Pro, and S19 XP, connects directly to this shroud using existing fan screws. Check the rear panel of your machine: two side-by-side 120mm fan ports on the exhaust side means this shroud installs without any modification.
For the inline duct side of the setup, source a fan rated for 8-inch duct diameter. These are widely available at hardware stores and HVAC suppliers. If you’re still sourcing your miner, you can buy an Antminer ASIC miner from a reliable domestic supplier and pair it with this shroud from the first power-on.
How It Compares
The Antminer dual 120mm 8 inch shroud from CryptoCloaks holds a clear edge in material, pricing, and domestic availability against both premium and budget alternatives. Here is the direct breakdown:
| Feature | CryptoCloaks | D-Central Dual 120mm | eBay Generic |
|---|---|---|---|
| Price (USD) | $22.99 | $33+ (CAD pricing) | $8.85 |
| Material | PETG, warp-resistant | Unspecified | Unknown |
| Outlet Size | 8 inch | 8 inch | 4 inch only |
| Hardware Required | None, stock screws | Unknown | Unknown |
| Verified Antminer Fit | Yes, V4 iteration | Generic listing | No version history |
The eBay generic routes to a 4-inch outlet only, which creates backpressure on a full-size Antminer exhaust and significantly limits how much hot air you can move. The D-Central option ships from Canada in CAD, which adds currency conversion friction and longer delivery time for US-based miners. CryptoCloaks ships domestically in USD, uses confirmed PETG, and carries a design you can trace through four documented iterations.
Frequently Asked Questions
Which Antminer models are compatible with this dual 120mm to 8 inch shroud?
The Antminer dual 120mm 8 inch shroud fits any Antminer unit with a dual 120mm rear exhaust fan configuration. This includes the S19, S19 Pro, S19j, S19j Pro, and S19 XP. The check is straightforward: look at the rear panel of your machine. Two side-by-side 120mm fan ports on the exhaust side means this shroud connects directly using your existing fan screws. No modifications, no drilling, no additional hardware required. CryptoCloaks has been making and refining Antminer accessories since 2017, and the V4 designation reflects four rounds of fit testing across the most common dual-fan Antminer configurations in active use. If you are uncertain about your specific model, verify the fan port dimensions on the rear panel or reach out to CryptoCloaks directly before ordering.
Will this shroud warp or deform from ASIC exhaust heat over time?
CryptoCloaks prints the Antminer dual 120mm 8 inch shroud in PETG specifically to resist the sustained high-temperature exhaust that causes PLA or lower-grade materials to warp and sag over time. ASIC miners run hot continuously. The exhaust air coming out of a dual 120mm Antminer array reaches temperatures that stress standard thermoplastics under prolonged operation. PETG maintains its shape and dimensional accuracy under those conditions, which keeps screw holes aligned and the duct collar round throughout the life of the part. A verified buyer running this shroud through sustained ASIC heat cycles confirmed no warping and no deformation in real-world use. Therefore, you can install this adapter and leave it in place without monitoring for heat-related failure or periodic replacement.
What size inline duct fan pairs best with this 8 inch outlet shroud?
The Antminer dual 120mm 8 inch shroud routes exhaust into a standard 8-inch duct, so you need an inline fan rated for 8-inch diameter connections on the duct side. For a single Antminer, a fan in the 400 to 600 CFM range is a practical starting point. However, if you are running multiple miners or your duct run covers a significant distance, stepping up to 800 CFM provides headroom and prevents static pressure from accumulating in the line. Additionally, 8-inch inline fans designed for HVAC and grow room applications are widely available at hardware stores, which makes sourcing simple. Verify that the fan you select is rated for continuous duty if your miners operate around the clock, as most quality HVAC-grade inline fans are built for exactly that kind of sustained load.
Order the Antminer dual 120mm 8 inch shroud today and put that exhaust where it belongs: into a duct and out of your space. Bitcoin accepted. Made in America. Ships in 2-3 business days.
Christopher Cook (verified owner) –
the only ones i have found that do not warp – these are the penultimate versions