Hardware Spec Index

Zephyra FN-8921 Ultra 120mm PWM Case Fan

Case Fans · Zephyra · SKU FN8921-ULTRA · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index471 (Case Fans scale)
Category rank#24,789
Street price$19
Power4 W
Performance per dollar24.79
Released2024

Specifications

BrandZephyra
ModelZephyra FN-8921 Ultra
Size120 × 120 × 25 mm
Speed400–3,000 RPM (PWM)
Airflow102.0 CFM
Static pressure3.30 mmH₂O
Noise22 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

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Cite this page: Hardware Spec Index, “Zephyra FN-8921 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/9003144 (accessed 2026-10-20).