Hardware Spec Index

Zephyra FN-5643 Ultra 140mm PWM ARGB Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN5643-ULTRA · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index1,397 (Case Fans scale)
Category rank#43,175
Street price$49
Power3 W
Performance per dollar28.51
Released2024

Specifications

BrandZephyra
ModelZephyra FN-5643 Ultra
Size140 × 140 × 25 mm
Speed300–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise33 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-5643 Ultra 140mm PWM ARGB Case Fan (3-Pack)”, https://vextor7.com/item/579035 (accessed 2026-10-22).