Hardware Spec Index

Caldera FN-6491 Pro 120mm PWM Case Fan

Case Fans · Caldera · SKU FN6491-PRO · Released 2021 · Updated 2026-10-18

Key facts

Benchmark index778 (Case Fans scale)
Category rank#39,092
Street price$19
Power4 W
Performance per dollar40.95
Released2021

Specifications

BrandCaldera
ModelCaldera FN-6491 Pro
Size120 × 120 × 25 mm
Speed300–2,600 RPM (PWM)
Airflow88.4 CFM
Static pressure2.86 mmH₂O
Noise30 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-2552 XT 120mm PWM Case Fan250$9Compare
Zephyra FN-4489 XT 140mm PWM ARGB Case Fan (3-Pack)1,064$39Compare
Caldera FN-4789 XT 120mm PWM ARGB Case Fan1,281$49Compare
Brontix FN-6610 Core 140mm PWM Case Fan753$19Compare
Teralux FN-7452 Plus 120mm PWM Case Fan569$19Compare
Teralux FN-7061 Ultra 120mm PWM Case Fan281$9Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-6491 Pro 120mm PWM Case Fan”, https://vextor7.com/item/19929338 (accessed 2026-10-18).