Hardware Spec Index

Zephyra FN-5421 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN5421-ULTRA · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index1,222 (Case Fans scale)
Category rank#7,870
Street price$49
Power3 W
Performance per dollar24.94
Released2022

Specifications

BrandZephyra
ModelZephyra FN-5421 Ultra
Size120 × 120 × 25 mm
Speed300–1,600 RPM (PWM)
Airflow54.4 CFM
Static pressure1.76 mmH₂O
Noise28 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-5477 SE 140mm PWM ARGB Case Fan1,400$49Compare
Zephyra FN-4591 Prime 140mm PWM ARGB Case Fan1,400$49Compare
Caldera FN-9798 Ultra 120mm PWM Case Fan614$19Compare
Zephyra FN-1496 Max 140mm PWM Case Fan282$9Compare
Caldera FN-6127 XT 140mm PWM ARGB Case Fan1,292$49Compare
Corvane FN-9866 SE 120mm PWM Case Fan (3-Pack)375$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-5421 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/8045335 (accessed 2026-10-23).