Hardware Spec Index

Caldera FN-4521 Pro 120mm PWM Case Fan (3-Pack)

Case Fans · Caldera · SKU FN4521-PRO · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index480 (Case Fans scale)
Category rank#19,945
Street price$19
Power4 W
Performance per dollar25.26
Released2021

Specifications

BrandCaldera
ModelCaldera FN-4521 Pro
Size120 × 120 × 25 mm
Speed400–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise23 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-1840 SE 120mm PWM ARGB Case Fan (3-Pack)1,264$39Compare
Teralux FN-4182 Plus 140mm PWM ARGB Case Fan1,083$39Compare
Caldera FN-4445 SE 120mm PWM ARGB Case Fan793$29Compare
Brontix FN-7875 Plus 120mm PWM ARGB Case Fan1,057$39Compare
Teralux FN-5501 Prime 140mm PWM Case Fan537$19Compare
Brontix FN-8610 Ultra 140mm PWM ARGB Case Fan1,400$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-4521 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/30453058 (accessed 2026-10-22).