Hardware Spec Index

Zephyra FN-3851 Plus 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN3851-PLUS · Released 2026 · Updated 2026-10-23

Key facts

Benchmark index815 (Case Fans scale)
Category rank#8,550
Street price$29
Power3 W
Performance per dollar28.10
Released2026

Specifications

BrandZephyra
ModelZephyra FN-3851 Plus
Size120 × 120 × 25 mm
Speed400–1,500 RPM (PWM)
Airflow51.0 CFM
Static pressure1.65 mmH₂O
Noise29 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-2709 Pro 120mm PWM Case Fan525$19Compare
Caldera FN-2881 Plus 120mm PWM ARGB Case Fan1,037$29Compare
Brontix FN-7046 XT 120mm PWM Case Fan730$19Compare
Teralux FN-7708 Prime 120mm PWM ARGB Case Fan1,155$29Compare
Brontix FN-8501 Plus 120mm PWM ARGB Case Fan992$29Compare
Teralux FN-5139 Prime 140mm PWM ARGB Case Fan911$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-3851 Plus 120mm PWM ARGB Case Fan”, https://vextor7.com/item/6993357 (accessed 2026-10-23).