Hardware Spec Index

Caldera FN-5521 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN5521-ULTRA · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index562 (Case Fans scale)
Category rank#41,137
Street price$19
Power3 W
Performance per dollar29.58
Released2020

Specifications

BrandCaldera
ModelCaldera FN-5521 Ultra
Size140 × 140 × 25 mm
Speed400–2,100 RPM (PWM)
Airflow100.8 CFM
Static pressure2.00 mmH₂O
Noise35 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5521 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/3950045 (accessed 2026-10-23).