Hardware Spec Index

Zephyra FN-9421 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN9421-ULTRA · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index716 (Case Fans scale)
Category rank#2,787
Street price$19
Power4 W
Performance per dollar37.68
Released2025

Specifications

BrandZephyra
ModelZephyra FN-9421 Ultra
Size140 × 140 × 25 mm
Speed400–3,000 RPM (PWM)
Airflow144.0 CFM
Static pressure2.85 mmH₂O
Noise34 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-6507 Max 120mm PWM Case Fan799$29Compare
Zephyra FN-9585 SE 120mm PWM Case Fan844$29Compare
Corvane FN-6554 Prime 120mm PWM Case Fan (3-Pack)375$9Compare
Teralux FN-3690 Edge 140mm PWM Case Fan (3-Pack)246$9Compare
Corvane FN-7642 Pro 120mm PWM ARGB Case Fan942$29Compare
Zephyra FN-7482 Ti 140mm PWM Case Fan323$9Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-9421 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/21473277 (accessed 2026-10-23).