Hardware Spec Index

Caldera FN-5558 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN5558-ULTRA · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index361 (Case Fans scale)
Category rank#36,295
Street price$19
Power4 W
Performance per dollar19.00
Released2026

Specifications

BrandCaldera
ModelCaldera FN-5558 Ultra
Size140 × 140 × 25 mm
Speed300–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-5558 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/95038058 (accessed 2026-10-25).