Hardware Spec Index

Zephyra FN-4977 XT 140mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN4977-XT · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index676 (Case Fans scale)
Category rank#30,694
Street price$19
Power3 W
Performance per dollar35.58
Released2025

Specifications

BrandZephyra
ModelZephyra FN-4977 XT
Size140 × 140 × 25 mm
Speed200–1,800 RPM (PWM)
Airflow86.4 CFM
Static pressure1.71 mmH₂O
Noise36 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4977 XT 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/7736071 (accessed 2026-10-20).