Hardware Spec Index

Zephyra FN-4640 XT 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN4640-XT · Released 2022 · Updated 2026-10-26

Key facts

Benchmark index530 (Case Fans scale)
Category rank#37,079
Street price$19
Power3 W
Performance per dollar27.89
Released2022

Specifications

BrandZephyra
ModelZephyra FN-4640 XT
Size120 × 120 × 25 mm
Speed400–1,900 RPM (PWM)
Airflow64.6 CFM
Static pressure2.09 mmH₂O
Noise33 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-4640 XT 120mm PWM Case Fan”, https://vextor7.com/item/32391707 (accessed 2026-10-26).