Hardware Spec Index

Caldera FN-4977 XT 120mm PWM Case Fan

Case Fans · Caldera · SKU FN4977-XT · Released 2020 · Updated 2026-10-20

Key facts

Benchmark index738 (Case Fans scale)
Category rank#3,543
Street price$19
Power3 W
Performance per dollar38.84
Released2020

Specifications

BrandCaldera
ModelCaldera FN-4977 XT
Size120 × 120 × 25 mm
Speed300–2,400 RPM (PWM)
Airflow81.6 CFM
Static pressure2.64 mmH₂O
Noise25 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4977 XT 120mm PWM Case Fan”, https://vextor7.com/item/3399690 (accessed 2026-10-20).