Hardware Spec Index

Caldera FN-5721 Ultra 120mm PWM Case Fan

Case Fans · Caldera · SKU FN5721-ULTRA · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index444 (Case Fans scale)
Category rank#41,600
Street price$19
Power3 W
Performance per dollar23.37
Released2022

Specifications

BrandCaldera
ModelCaldera FN-5721 Ultra
Size120 × 120 × 25 mm
Speed300–2,000 RPM (PWM)
Airflow68.0 CFM
Static pressure2.20 mmH₂O
Noise31 dBA
BearingMagnetic levitation
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Zephyra FN-1788 Edge 140mm PWM Case Fan305$9Compare
Brontix FN-3176 Max 140mm PWM Case Fan492$19Compare
Corvane FN-3725 SE 120mm PWM ARGB Case Fan1,377$49Compare
Zephyra FN-4475 Edge 120mm PWM ARGB Case Fan1,400$49Compare
Corvane FN-9149 Core 120mm PWM ARGB Case Fan1,291$39Compare
Brontix FN-8573 Max 140mm PWM ARGB Case Fan (3-Pack)911$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-5721 Ultra 120mm PWM Case Fan”, https://vextor7.com/item/940235 (accessed 2026-10-19).