Hardware Spec Index

Zephyra FN-3811 Prime 140mm PWM Case Fan

Case Fans · Zephyra · SKU FN3811-PRIME · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index606 (Case Fans scale)
Category rank#4,520
Street price$19
Power3 W
Performance per dollar31.89
Released2025

Specifications

BrandZephyra
ModelZephyra FN-3811 Prime
Size140 × 140 × 25 mm
Speed400–1,700 RPM (PWM)
Airflow81.6 CFM
Static pressure1.61 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-7931 Prime 140mm PWM ARGB Case Fan916$29Compare
Zephyra FN-9392 Core 120mm PWM ARGB Case Fan (3-Pack)1,114$39Compare
Teralux FN-9336 Ultra 120mm PWM Case Fan553$19Compare
Zephyra FN-9462 SE 120mm PWM ARGB Case Fan (3-Pack)1,026$29Compare
Teralux FN-9871 Prime 120mm PWM Case Fan (3-Pack)631$19Compare
Brontix FN-7989 Core 120mm PWM ARGB Case Fan (3-Pack)1,052$39Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-3811 Prime 140mm PWM Case Fan”, https://vextor7.com/item/8308885 (accessed 2026-10-21).