Description
A high-performance 120mm replacement cooling fan rated at 7000 RPM, designed for the latest generation of Bitmain Antminers. This fan delivers significantly higher airflow than lower-RPM stock fans, providing the cooling capacity needed for the S19k Pro, T21, and S21 series at full hashrate. Uses a 4-pin square connector for direct compatibility with Bitmain’s fan header.
| Specification | Details |
|---|---|
| Size | 120mm × 120mm × 38mm |
| Speed | 7000 RPM |
| Connector | 4-pin square (Bitmain standard) |
| Compatible Miners | Antminer S19k Pro, T21, S21 |
| Manufacturer | MARTECH |
Key Features
- 7000 RPM delivers high airflow for demanding S19k Pro, T21, and S21 cooling requirements
- 4-pin square connector — direct plug-in replacement for Bitmain fan headers
- 120mm standard size fits the Antminer chassis fan slots without modification
- Reliable bearings rated for continuous 24/7 mining operation
- Essential replacement when stock fans degrade — prevents overheating and hashrate loss
Compatibility
Designed for Bitmain Antminer models that use 120mm fans with a 4-pin square connector, including the S19k Pro, T21, and S21. Verify your miner’s fan connector type before ordering — some older models use a different pin configuration.
How do I know if my miner’s fan needs replacing?
Signs include: abnormal noise (grinding, clicking, or rattling), reduced airflow (hold your hand near the exhaust), rising ASIC chip temperatures in the dashboard, or fan speed errors in the miner’s control interface. Fans are wear items — they degrade over time in dusty or humid environments.
Are 7000 RPM fans louder than stock?
At equal RPM settings, performance is comparable. The 7000 RPM rating is the maximum speed — the miner’s firmware controls fan speed based on temperature. The fan will only hit 7000 RPM under heavy thermal load. If you are ducting your exhaust, the noise difference is minimal.
How many fans does an S19/S21 use?
Most S19 and S21 models use four 120mm fans — two intake and two exhaust. We recommend replacing all fans at the same time to ensure balanced airflow across the hashboards.
Reviews
There are no reviews yet.