Hardware Spec Index

Caldera FN-6521 XT 120mm PWM Case Fan

Case Fans · Caldera · SKU FN6521-XT · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index679 (Case Fans scale)
Category rank#31,173
Street price$19
Power3 W
Performance per dollar35.74
Released2026

Specifications

BrandCaldera
ModelCaldera FN-6521 XT
Size120 × 120 × 25 mm
Speed400–1,700 RPM (PWM)
Airflow57.8 CFM
Static pressure1.87 mmH₂O
Noise23 dBA
BearingFluid dynamic bearing
Connector4-pin PWM
Rated lifetime50,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-6521 XT 120mm PWM Case Fan”, https://vextor7.com/item/12920740 (accessed 2026-10-22).