Hardware Spec Index

Zephyra FN-3975 Prime 140mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3975-PRIME · Released 2025 · Updated 2026-10-25

Key facts

Benchmark index1,336 (Case Fans scale)
Category rank#31,331
Street price$39
Power4 W
Performance per dollar34.26
Released2025

Specifications

BrandZephyra
ModelZephyra FN-3975 Prime
Size140 × 140 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise27 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
Brontix FN-4257 SE 120mm PWM Case Fan (3-Pack)637$19Compare
Teralux FN-2768 Ti 140mm PWM ARGB Case Fan (3-Pack)1,107$29Compare
Brontix FN-7998 Edge 140mm PWM ARGB Case Fan1,017$39Compare
Zephyra FN-2990 Max 120mm PWM ARGB Case Fan1,301$49Compare
Caldera FN-5609 XT 120mm PWM Case Fan748$29Compare
Teralux FN-4306 Ultra 120mm PWM Case Fan409$19Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-3975 Prime 140mm PWM ARGB Case Fan”, https://vextor7.com/item/2345175 (accessed 2026-10-25).