Hardware Spec Index

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

Case Fans · Zephyra · SKU FN4521-PRO · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index288 (Case Fans scale)
Category rank#36,748
Street price$9
Power3 W
Performance per dollar32.00
Released2023

Specifications

BrandZephyra
ModelZephyra FN-4521 Pro
Size120 × 120 × 25 mm
Speed300–1,800 RPM (PWM)
Airflow61.2 CFM
Static pressure1.98 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-2920 Ti 120mm PWM ARGB Case Fan1,327$49Compare
Zephyra FN-2722 XT 120mm PWM ARGB Case Fan1,017$29Compare
Teralux FN-8836 Ultra 140mm PWM Case Fan (3-Pack)551$19Compare
Caldera FN-3687 XT 120mm PWM ARGB Case Fan1,029$39Compare
Caldera FN-5871 Pro 140mm PWM Case Fan603$19Compare
Corvane FN-8183 Pro 140mm PWM ARGB Case Fan1,237$39Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-4521 Pro 120mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/9896026 (accessed 2026-10-22).