Hardware Spec Index

Caldera FN-4645 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN4645-PRIME · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index355 (Case Fans scale)
Category rank#25,629
Street price$9
Power3 W
Performance per dollar39.44
Released2023

Specifications

BrandCaldera
ModelCaldera FN-4645 Prime
Size140 × 140 × 25 mm
Speed400–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise33 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4645 Prime 140mm PWM Case Fan”, https://vextor7.com/item/526403 (accessed 2026-10-19).