Hardware Spec Index

Zephyra FN-5991 Prime 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN5991-PRIME · Released 2024 · Updated 2026-10-24

Key facts

Benchmark index389 (Case Fans scale)
Category rank#14,223
Street price$9
Power4 W
Performance per dollar43.22
Released2024

Specifications

BrandZephyra
ModelZephyra FN-5991 Prime
Size120 × 120 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow98.6 CFM
Static pressure3.19 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-7625 Prime 120mm PWM Case Fan (3-Pack)412$9Compare
Brontix FN-8928 Pro 120mm PWM Case Fan643$19Compare
Corvane FN-3864 Max 120mm PWM Case Fan315$9Compare
Caldera FN-4171 Ti 120mm PWM Case Fan (3-Pack)715$19Compare
Zephyra FN-2112 Plus 120mm PWM ARGB Case Fan1,126$39Compare
Teralux FN-5113 SE 120mm PWM ARGB Case Fan875$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-5991 Prime 120mm PWM Case Fan”, https://vextor7.com/item/8567158 (accessed 2026-10-24).