Description
Sj SG121238BS 6000 RPM PWM Cooling Fan for ASIC Miners
The Antminer replacement cooling fan 120mm 6000 rpm is a reliable choice for Bitcoin mining operations.
The Sj SG121238BS is a high-performance 120mm cooling fan purpose-built for ASIC cryptocurrency miners. Delivering 6000 RPM with PWM speed control, this fan provides the aggressive airflow that mining hardware demands to maintain stable hashrates and prevent thermal throttling.
Key Specifications
- Dimensions: 120 x 120 x 38 mm
- Speed: 6000 RPM (PWM adjustable)
- Voltage / Current: 12V DC / 2.7A
- Airflow: 210.38 CFM
- Static Pressure: 21.60 mmH2O
- Noise Level: 64 dB-A
- Connector: 4-pin PWM
- Bearing Type: Dual ball bearing (maintenance-free, long service life)
Compatible Mining Hardware
This fan is a direct replacement for cooling fans used in a wide range of Bitmain Antminer models including the S7, S9, S9i, S11, L3+, A3, D3, T9+, and ElphaPex DG1/DG1+. It also fits other ASIC miners that use standard 120x38mm fans with a 4-pin PWM connector.
Why You Need This Fan
Cooling fan failure is one of the most common causes of miner downtime and hashboard damage. When a fan fails or degrades, temperatures spike, causing the miner to throttle performance or shut down entirely. Worse, prolonged overheating can permanently damage expensive hashboards and ASIC chips. Keeping spare fans on hand is essential preventive maintenance for any serious mining operation.
The SG121238BS uses high-precision dual ball bearings for reliable long-term operation, even under the continuous 24/7 demands of mining. The PWM speed control allows the miner firmware to automatically adjust fan speed based on temperature, balancing cooling performance with noise levels.
Shop the Sj Sg121238bs 6000 Pwm and more at D-Central Technologies, shipping worldwide from Canada.

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