Hardware Spec Index

Caldera FN-4138 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4138-ULTRA · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index660 (Case Fans scale)
Category rank#30,293
Street price$19
Power3 W
Performance per dollar34.74
Released2023

Specifications

BrandCaldera
ModelCaldera FN-4138 Ultra
Size140 × 140 × 25 mm
Speed400–2,000 RPM (PWM)
Airflow96.0 CFM
Static pressure1.90 mmH₂O
Noise32 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4138 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/6969239 (accessed 2026-10-19).