Hardware Spec Index

Zephyra FN-4257 Core 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN4257-CORE · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index486 (Case Fans scale)
Category rank#16,470
Street price$19
Power4 W
Performance per dollar25.58
Released2024

Specifications

BrandZephyra
ModelZephyra FN-4257 Core
Size140 × 140 × 25 mm
Speed300–2,500 RPM (PWM)
Airflow120.0 CFM
Static pressure2.38 mmH₂O
Noise24 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-4550 XT 140mm PWM ARGB Case Fan843$29Compare
Caldera FN-6938 Edge 140mm PWM Case Fan408$19Compare
Brontix FN-8675 Prime 120mm PWM Case Fan605$19Compare
Brontix FN-4806 Edge 120mm PWM Case Fan417$9Compare
Zephyra FN-6609 Plus 120mm PWM Case Fan414$9Compare
Brontix FN-4330 XT 120mm PWM ARGB Case Fan (3-Pack)1,358$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-4257 Core 140mm PWM Case Fan”, https://vextor7.com/item/11116466 (accessed 2026-10-20).