Hardware Spec Index

Caldera FN-5681 Prime 140mm PWM Case Fan

Case Fans · Caldera · SKU FN5681-PRIME · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index472 (Case Fans scale)
Category rank#8,815
Street price$19
Power3 W
Performance per dollar24.84
Released2024

Specifications

BrandCaldera
ModelCaldera FN-5681 Prime
Size140 × 140 × 25 mm
Speed200–2,400 RPM (PWM)
Airflow115.2 CFM
Static pressure2.28 mmH₂O
Noise34 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-5030 Pro 120mm PWM Case Fan223$9Compare
Caldera FN-2038 Pro 120mm PWM ARGB Case Fan1,034$39Compare
Zephyra FN-8490 Prime 140mm PWM Case Fan793$29Compare
Zephyra FN-2329 Max 140mm PWM ARGB Case Fan1,365$39Compare
Teralux FN-3134 Plus 120mm PWM Case Fan (3-Pack)258$9Compare
Zephyra FN-6572 Max 140mm PWM ARGB Case Fan827$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-5681 Prime 140mm PWM Case Fan”, https://vextor7.com/item/13100739 (accessed 2026-10-19).