The KZ14038B012U Cooling Fan is a high-power 140mm fan designed for Whatsminer M20 and M21 series miners. Featuring a durable dual ball bearing design, this fan delivers exceptional airflow and heat dissipation, ensuring optimal performance for your ASIC miners under heavy workloads.

With a 12V 7.2A rating, a 6-pin power interface, and 140x140x38mm dimensions, this cooling fan is a direct replacement part for Whatsminer M20/M21 models, built for long-lasting 24/7 mining operation.

Key Features

• Model: KZ14038B012U

• Voltage & Current: 12V, 7.2A

• Size: 140x140x38mm (14cm high-performance)

• Bearing Type: Ball Bearing for durability

• Connector: 6-Pin power interface (Whatsminer standard)

• Compatibility: Whatsminer M20, M21 series

• Performance: High airflow & cooling efficiency

• Durability: Designed for continuous 24/7 crypto mining operations

Why Choose This Fan?

✅ Optimized for Whatsminer M20 / M21 miners
✅ Powerful airflow keeps miners stable under full load
✅ Ball bearing design for extended lifespan
✅ 6-pin direct replacement — easy installation