Hardware Spec Index

Zephyra FN-3721 Prime 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN3721-PRIME · Released 2019 · Updated 2026-10-18

Key facts

Benchmark index1,379 (Case Fans scale)
Category rank#14,521
Street price$49
Power3 W
Performance per dollar28.14
Released2019

Specifications

BrandZephyra
ModelZephyra FN-3721 Prime
Size140 × 140 × 25 mm
Speed200–1,900 RPM (PWM)
Airflow91.2 CFM
Static pressure1.80 mmH₂O
Noise34 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-3721 Prime 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/17535835 (accessed 2026-10-18).