Hardware Spec Index

Zephyra FN-4857 XT 140mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4857-XT · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index523 (Case Fans scale)
Category rank#17,637
Street price$19
Power3 W
Performance per dollar27.53
Released2022

Specifications

BrandZephyra
ModelZephyra FN-4857 XT
Size140 × 140 × 25 mm
Speed500–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4857 XT 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/43660889 (accessed 2026-10-20).