Hardware Spec Index

Zephyra FN-3857 Plus 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3857-PLUS · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index378 (Case Fans scale)
Category rank#18,810
Street price$9
Power3 W
Performance per dollar42.00
Released2025

Specifications

BrandZephyra
ModelZephyra FN-3857 Plus
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise36 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-5703 Ti 120mm PWM Case Fan (3-Pack)316$9Compare
Corvane FN-1126 Ultra 120mm PWM ARGB Case Fan1,279$49Compare
Corvane FN-1486 Pro 120mm PWM Case Fan (3-Pack)242$9Compare
Brontix FN-1276 Edge 120mm PWM ARGB Case Fan (3-Pack)811$29Compare
Teralux FN-8581 SE 120mm PWM Case Fan537$19Compare
Corvane FN-8314 Plus 140mm PWM ARGB Case Fan (3-Pack)875$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-3857 Plus 140mm PWM Case Fan”, https://vextor7.com/item/1330809 (accessed 2026-10-22).