Description
Upgrade your Antminer’s cooling by swapping the stock 120mm fans for larger, quieter 140mm fans. This 2-pack of 3D-printed adapters bridges the size difference, letting 140mm fans mount directly onto 120mm fan slots. Larger fans move more air at lower RPMs — meaning lower temperatures and significantly less noise.
Why 140mm Fans?
A 140mm fan has 36% more blade area than a 120mm fan. At the same airflow volume, it spins slower and quieter. For home miners running 24/7, swapping to 140mm fans with these adapters can make the difference between tolerable and intolerable noise levels.
| Specifications | |
|---|---|
| Quantity | 2 adapters per pack (one for each end of the miner) |
| Input | 120mm fan mounting (standard ASIC miner) |
| Output | 140mm fan mounting |
| Material | 3D-printed PETG (heat-resistant) |
| Compatibility | Antminer S7, S9, S9i, T9, L3+, D3, A3, V9, X3, E3 |
Compatible Miners
- Bitmain Antminer S7
- Bitmain Antminer S9, S9i, S9j
- Bitmain Antminer T9, T9+
- Bitmain Antminer L3, L3+, L3++
- Bitmain Antminer D3, A3, V9, X3, E3
Note: 140mm replacement fans sold separately. You will also need to manage the fan connector and PWM signal for aftermarket fans (the stock Antminer fan connector is not standard).
Do I need any other parts for this mod?
You need two 140mm fans (one intake, one exhaust) and may need a fan connector adapter or PWM controller if your replacement fans do not use the Antminer’s proprietary 6-pin connector. Some home miners use standalone fan controllers with these adapters.
Will this work with the S19 or newer models?
The S19 and newer Antminer models use a different fan mounting configuration than the S9-era chassis. These adapters are designed specifically for the S9/L3+ generation of miners with single 120mm fans on each side.
How much quieter will my miner be?
Results vary by fan choice, but many home miners report a reduction from 75+ dB to under 55 dB when pairing these adapters with quality 140mm fans (like Noctua NF-A14) and an aftermarket fan controller. The lower RPM of the larger fan is what makes the difference.
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