About the Product

W40S12BMF5‑01 Z90 High-Speed Fan (4028, 40 × 40 × 28 mm)

Ideal for PSU cooling applications—including Bitmain APW8, APW9, APW9+ units—this performance-focused fan ensures rapid heat dissipation and reliable power supply operation.

Key Features

• Manufacturer / Brand: Nidec Corporation — a global leader in precision cooling and motor components NIDEC CORPORATIONMerchant Genius

• Model: W40S12BMF5‑01 Z90

• Dimensions: 40 × 40 × 28 mm (common 4028 size) NIDEC CORPORATIONMerchant Genius

• Rated Voltage: 12 V DC (operational range 10.8–13.2 V) NIDEC CORPORATION

• Current: 0.68 A (~8.2 W power input) NIDEC CORPORATIONEcer

• Speed: ~18,300 RPM → around 16,000–18,300 RPM depending on source NIDEC CORPORATIONLYS Shenzhen

• Airflow: 0.65 m³/min (~22.9 CFM) NIDEC CORPORATION

• Static Pressure: ~590 Pa (~2.37 in H₂O) NIDEC CORPORATION

• Bearing Type: Ball bearing, rated up to ~70,000 hrs at 40 °C NIDEC CORPORATION

• Noise Level: Approximately 59.5 dB(A) under load NIDEC CORPORATION

Overview Description

Upgrade your PSU cooling setup with the W40S12BMF5‑01 Z90 by Nidec—a robust high-speed axial fan engineered for intensive cooling needs. Its compact form (40 × 40 × 28 mm) and powerful airflow (22.9 CFM) make it a perfect fit for compact power supply units such as those used in mining rigs.

With a strong ball-bearing motor rated at 12 V and 0.68 A, this fan operates at around 18,000 RPM, offering excellent static pressure and high thermal performance. The noise output is higher than typical low-speed models due to its high RPM, but it delivers substantial cooling capacity where needed most.

Technical Specifications