Hardware Spec Index

Caldera FN-8645 Ultra 140mm PWM Case Fan

Case Fans · Caldera · SKU FN8645-ULTRA · Released 2021 · Updated 2026-10-23

Key facts

Benchmark index436 (Case Fans scale)
Category rank#30,487
Street price$19
Power3 W
Performance per dollar22.95
Released2021

Specifications

BrandCaldera
ModelCaldera FN-8645 Ultra
Size140 × 140 × 25 mm
Speed400–1,600 RPM (PWM)
Airflow76.8 CFM
Static pressure1.52 mmH₂O
Noise33 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime150,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-4225 XT 120mm PWM Case Fan238$9Compare
Teralux FN-3333 XT 140mm PWM ARGB Case Fan1,045$29Compare
Teralux FN-4647 Edge 120mm PWM ARGB Case Fan1,283$39Compare
Brontix FN-5891 XT 120mm PWM ARGB Case Fan1,278$49Compare
Brontix FN-4525 Prime 120mm PWM Case Fan746$29Compare
Teralux FN-6941 SE 140mm PWM ARGB Case Fan1,348$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-8645 Ultra 140mm PWM Case Fan”, https://vextor7.com/item/5509750 (accessed 2026-10-23).