Hardware Spec Index

Caldera FN-3688 XT 120mm PWM Case Fan

Case Fans · Caldera · SKU FN3688-XT · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index443 (Case Fans scale)
Category rank#30,859
Street price$19
Power3 W
Performance per dollar23.32
Released2021

Specifications

BrandCaldera
ModelCaldera FN-3688 XT
Size120 × 120 × 25 mm
Speed300–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise29 dBA
BearingRifle bearing
Connector4-pin PWM
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Brontix FN-4445 XT 120mm PWM Case Fan (3-Pack)218$9Compare
Caldera FN-8135 Edge 120mm PWM ARGB Case Fan1,019$29Compare
Caldera FN-3448 Edge 120mm PWM Case Fan718$19Compare
Corvane FN-4106 Ultra 120mm PWM Case Fan629$19Compare
Brontix FN-3100 Pro 140mm PWM ARGB Case Fan851$29Compare
Caldera FN-7312 Edge 120mm PWM ARGB Case Fan1,268$49Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Caldera FN-3688 XT 120mm PWM Case Fan”, https://vextor7.com/item/54779509 (accessed 2026-10-25).