Hardware Spec Index

Zephyra FN-3646 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3646-ULTRA · Released 2023 · Updated 2026-10-26

Key facts

Benchmark index1,400 (Case Fans scale)
Category rank#9,476
Street price$49
Power4 W
Performance per dollar28.57
Released2023

Specifications

BrandZephyra
ModelZephyra FN-3646 Ultra
Size120 × 120 × 25 mm
Speed400–2,700 RPM (PWM)
Airflow91.8 CFM
Static pressure2.97 mmH₂O
Noise31 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-1726 Pro 120mm PWM ARGB Case Fan (3-Pack)1,252$49Compare
Caldera FN-4619 Edge 120mm PWM Case Fan741$19Compare
Zephyra FN-5170 XT 120mm PWM ARGB Case Fan (3-Pack)1,127$39Compare
Zephyra FN-9096 XT 120mm PWM Case Fan565$19Compare
Zephyra FN-1003 Plus 140mm PWM ARGB Case Fan (3-Pack)892$29Compare
Brontix FN-9161 Max 120mm PWM Case Fan655$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-3646 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/22553302 (accessed 2026-10-26).