Antminer Dual 120mm to 6 Inch Adapter (V3): PETG Fan Duct Shroud for Home Bitcoin Mining
Your Antminer is pushing serious heat into whatever room it lives in, and a bad ventilation setup means throttled hashrate, shortened hardware life, and a space that feels like a sauna. The CryptoCloaks Antminer dual 120mm to 6 inch adapter channels exhaust from both stock fans directly into standard 6-inch flex duct, so your miner breathes cleanly and your home stays livable.
Table of Contents
- What Is the Antminer Dual 120mm to 6 Inch Adapter
- Why CryptoCloaks
- Antminer Dual 120mm to 6 Inch Adapter: Specs and Compatibility
- How It Compares
- FAQ
What Is the Antminer Dual 120mm to 6 Inch Adapter
Antminers ship with two 120mm fans that blast hot exhaust air directly into whatever space they occupy. Without a proper duct solution, that heat accumulates, raises ambient temps, and actively works against your miner’s own cooling system. The Antminer dual 120mm to 6 inch adapter bridges both stock fan outlets into a single 6-inch duct opening, letting you route exhaust outside, into a garage, or through any standard HVAC-compatible ducting run.
This is the V4 iteration. Customers who ran earlier versions have noted in their reviews that the V4 is noticeably sturdier. CryptoCloaks listens to real-world feedback and refines each version accordingly, not just from bench testing. The result is a tighter fit, better layer adhesion, and a part that holds its geometry under sustained thermal load.
The adapter is printed in PETG. That material choice is deliberate. PLA, which many generic sellers use because it is cheap and easy to print, softens around 60°C. Antminer exhaust regularly hits or exceeds that threshold, especially in warmer ambient environments. PETG handles those temperatures without warping or losing its seal, making it the correct material for this application. That is not a marketing point. It is basic materials science.
Why CryptoCloaks
CryptoCloaks has been building bitcoin mining accessories since 2017. Ricky, the founder, personally prints, inspects, and ships every order from his shop in America. You are not buying a mass-produced part of unknown origin from a reseller who has never touched an Antminer. You are getting a component designed by someone who actually mines bitcoin and stands behind the work.
The Antminer dual 120mm to 6 inch adapter mounts using the stock screws already on your machine. No additional hardware required. No trip to the hardware store, no mismatched bolt kits. Customers consistently report install times under five minutes. That matters when your miner is offline and every minute costs sats.
CryptoCloaks designs specifically for home miners managing real setups. If you are also dealing with intake airflow, the Bitcoin Space Heater 140mm Fan Adapters pair well with this unit for a complete ducting approach. Getting both sides of the airflow equation right makes a measurable difference in ambient temps and long-term miner stability.
Antminer Dual 120mm to 6 Inch Adapter: Specs and Compatibility
- Material: PETG, heat-resistant and rated for sustained Antminer exhaust temps
- Inlet: Dual 120mm, precision-modeled to match stock Antminer fan spacing
- Outlet: 6 inch duct
- Mounting hardware: None required. Uses existing Antminer stock screws.
- Weight: 8 oz
- Dimensions: 10 × 8 × 7 in
- Available colors: Orange, Black, White
- SKU: CC-MA-ANTMDUAL120M
- Version: V4
- Price: $24.99
The Antminer dual 120mm to 6 inch adapter is compatible with Antminer models that use a dual 120mm exhaust fan configuration, including units in the popular S-series lineup. Verify your miner’s exhaust fan count and size before ordering. If you are sourcing new hardware to pair with this ducting setup, you can buy an Antminer from Kaboom Racks.
How It Compares
| Feature | CryptoCloaks | Generic / eBay Sellers |
|---|---|---|
| Print material | PETG (heat-resistant, won’t warp near Antminer exhaust) | PLA or unspecified (heat-prone, softens at ~60°C) |
| Antminer-specific fit | Yes, precision-modeled for stock 120mm fan spacing | Generic universal claim, fit not guaranteed |
| Extra hardware required | None, uses existing Antminer stock screws | Often requires separate bolts or adapters |
| Install time | Under 5 minutes (customer-verified) | Unknown, may require modification or trimming |
| Outlet duct size | 6 inch (community-validated for 120mm fan CFM output) | Varies; 4-inch options restrict airflow and create backpressure |
Frequently Asked Questions
Which Antminer models does this dual 120mm to 6 inch adapter fit?
The Antminer dual 120mm to 6 inch adapter is designed for Antminer models that ship with dual 120mm exhaust fans in a standard side-by-side configuration. This covers many units in the S-series lineup, including widely deployed models like the S19 and S19j Pro, which use the same stock fan spacing that CryptoCloaks precision-modeled this adapter around. The key thing to verify on your specific unit is the exhaust side fan count and diameter. If your miner has two 120mm fans on the exhaust end, this adapter is built for it. If you are unsure, check your miner’s spec sheet or reach out before ordering. CryptoCloaks models against actual Antminer hardware, so the fit is intentional and specific, not a vague universal compatibility claim.
Why is a 6 inch duct better than a 4 inch duct for Antminer ventilation?
A 4-inch duct creates a meaningful bottleneck when handling airflow from two 120mm fans. The combined CFM output from dual 120mm fans is substantial, and forcing that volume through a narrower opening generates backpressure. Backpressure causes your fans to work harder, reduces effective heat removal, and can cause your miner to throttle or alarm despite having ducting in place. A 6-inch outlet properly matches the flow capacity that dual 120mm fans produce. The bitcoin mining community has broadly validated this sizing through real-world use. The CryptoCloaks Antminer dual 120mm to 6 inch adapter uses a 6-inch outlet because airflow physics require it, not because it is a simpler component to design. Getting the duct diameter right is the difference between a ventilation system that works and one that only looks like it does.
Is PETG safe to use near Antminer exhaust heat over the long term?
Yes. PETG has a heat deflection temperature well above what Antminer exhaust produces under normal operating conditions. PLA begins to soften around 60°C, which falls within the range of temperatures that Antminer exhaust can reach, particularly in warmer climates or during summer. A PLA fan duct adapter near an Antminer is a reliability risk that compounds over time: the part slowly deforms, the seal against the fan housing degrades, and your duct efficiency drops without any obvious visible failure. CryptoCloaks prints the Antminer dual 120mm to 6 inch adapter in PETG specifically because it is the appropriate material for sustained thermal cycling in a mining environment. The V4 refinements, informed by customer feedback, further improve dimensional stability under repeated heat cycles so the adapter maintains its fit over the long haul.
Add the CryptoCloaks Antminer dual 120mm to 6 inch adapter to your cart and get your home mining exhaust under control today. Available in Orange, Black, and White at $24.99. Bitcoin accepted. Made in America. Ships in 2-3 business days.
Zac (verified owner) –
The dual to 6 inch adapter is exactly what I needed for my Antminer window unit. The part was printed perfectly and all measurements were accurate. Bolted on with the existing hardware in under 5 minutes.
Felipe Alaniz (verified owner) –
I have been a client for a couple of years now. I’m really satisfied with the quality of the work. This last piece that was purchased seems more sturdy than previous models. It looks like it will withstand time and heat really well. Will definitely keep purchasing from cryptocloaks.