Hardware Spec Index

Zephyra FN-4977 XT 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4977-XT · Released 2024 · Updated 2026-10-24

Key facts

Benchmark index761 (Case Fans scale)
Category rank#37,888
Street price$19
Power2 W
Performance per dollar40.05
Released2024

Specifications

BrandZephyra
ModelZephyra FN-4977 XT
Size120 × 120 × 25 mm
Speed400–1,400 RPM (PWM)
Airflow47.6 CFM
Static pressure1.54 mmH₂O
Noise32 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4977 XT 120mm PWM Case Fan”, https://vextor7.com/item/97050372 (accessed 2026-10-24).