Hardware Spec Index

Caldera FN-1781 Pro 140mm PWM Case Fan

Case Fans · Caldera · SKU FN1781-PRO · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index212 (Case Fans scale)
Category rank#257
Street price$9
Power4 W
Performance per dollar23.56
Released2021

Specifications

BrandCaldera
ModelCaldera FN-1781 Pro
Size140 × 140 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow129.6 CFM
Static pressure2.56 mmH₂O
Noise23 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Caldera FN-6548 Max 140mm PWM ARGB Case Fan1,348$49Compare
Brontix FN-7453 SE 120mm PWM ARGB Case Fan845$29Compare
Teralux FN-9742 Core 120mm PWM ARGB Case Fan1,049$39Compare
Zephyra FN-9635 Prime 120mm PWM Case Fan (3-Pack)719$19Compare
Caldera FN-8921 Ultra 140mm PWM Case Fan367$9Compare
Brontix FN-2326 SE 120mm PWM ARGB Case Fan1,208$39Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-1781 Pro 140mm PWM Case Fan”, https://vextor7.com/item/18979504 (accessed 2026-10-23).