Hardware Spec Index

Caldera FN-5921 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN5921-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index981 (Case Fans scale)
Category rank#11,017
Street price$29
Power4 W
Performance per dollar33.83
Released2019

Specifications

BrandCaldera
ModelCaldera FN-5921 Ultra
Size140 × 140 × 25 mm
Speed500–2,800 RPM (PWM)
Airflow134.4 CFM
Static pressure2.66 mmH₂O
Noise36 dBA
BearingMagnetic levitation
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-8094 XT 120mm PWM ARGB Case Fan974$29Compare
Teralux FN-5207 SE 140mm PWM Case Fan606$19Compare
Caldera FN-9583 Edge 120mm PWM Case Fan297$9Compare
Zephyra FN-1350 Core 120mm PWM Case Fan689$19Compare
Zephyra FN-3333 Core 120mm PWM Case Fan305$9Compare
Caldera FN-7895 Ti 140mm PWM ARGB Case Fan1,258$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-5921 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/235035 (accessed 2026-10-19).