Hardware Spec Index

Caldera FN-3648 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN3648-ULTRA · Released 2019 · Updated 2026-10-23

Key facts

Benchmark index304 (Case Fans scale)
Category rank#3,944
Street price$9
Power3 W
Performance per dollar33.78
Released2019

Specifications

BrandCaldera
ModelCaldera FN-3648 Ultra
Size140 × 140 × 25 mm
Speed500–2,300 RPM (PWM)
Airflow110.4 CFM
Static pressure2.19 mmH₂O
Noise25 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Teralux FN-6956 Pro 120mm PWM ARGB Case Fan (3-Pack)947$29Compare
Brontix FN-7207 Prime 140mm PWM ARGB Case Fan876$29Compare
Zephyra FN-4230 Ti 120mm PWM Case Fan (3-Pack)654$19Compare
Corvane FN-7158 Max 120mm PWM ARGB Case Fan1,211$39Compare
Teralux FN-1268 SE 120mm PWM ARGB Case Fan995$29Compare
Corvane FN-5768 XT 120mm PWM Case Fan226$9Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-3648 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/3577645 (accessed 2026-10-23).