The Original MARTECH 12V 4.5A Cooling Fan is a high-speed, high-performance replacement fan for a wide range of Antminer models, including L9, S19k Pro, S21, S19JXP, KS5 Pro, T21, and others. With a 7000 RPM high-speed design, this fan ensures efficient heat dissipation, keeping your ASIC miners operating at optimal temperatures and stable hash rates.

Designed for 24/7 mining operations, the MARTECH fan provides reliable cooling, durability, and easy installation, making it the perfect solution for miners looking to maintain or upgrade their hardware performance.

Key Features

• Model: Original MARTECH

• Voltage & Current: 12V, 4.5A

• Speed: 7000 RPM high-speed airflow

• Compatibility: Antminer L9, S19k Pro, S21, S19JXP, KS5 Pro, T21, and more

• Performance: Efficient cooling for stable miner operation

• Durability: Built for 24/7 heavy-duty ASIC mining

• Installation: Easy plug-and-play replacement

Why Choose This Fan?

✅ Maintains optimal operating temperatures for high-performance miners
✅ Reduces risk of overheating and potential hardware failure
✅ High-speed 7000 RPM ensures efficient cooling under full load
✅ Durable, industrial-grade construction for continuous mining operations