Hardware Spec Index

Zephyra FN-6691 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN6691-ULTRA · Released 2020 · Updated 2026-10-19

Key facts

Benchmark index765 (Case Fans scale)
Category rank#8,088
Street price$19
Power4 W
Performance per dollar40.26
Released2020

Specifications

BrandZephyra
ModelZephyra FN-6691 Ultra
Size120 × 120 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow95.2 CFM
Static pressure3.08 mmH₂O
Noise26 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-4587 Ultra 120mm PWM Case Fan254$9Compare
Caldera FN-4626 Ultra 120mm PWM ARGB Case Fan922$29Compare
Teralux FN-6435 Ti 140mm PWM Case Fan (3-Pack)778$19Compare
Caldera FN-7370 Edge 140mm PWM ARGB Case Fan (3-Pack)1,194$39Compare
Caldera FN-8038 Pro 140mm PWM ARGB Case Fan (3-Pack)1,394$49Compare
Zephyra FN-5275 Edge 120mm PWM ARGB Case Fan1,400$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-6691 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/7284231 (accessed 2026-10-19).