Hardware Spec Index

Caldera FN-4821 Ultra 140mm PWM ARGB Case Fan

Case Fans · Caldera · SKU FN4821-ULTRA · Released 2019 · Updated 2026-10-20

Key facts

Benchmark index1,334 (Case Fans scale)
Category rank#43,169
Street price$49
Power4 W
Performance per dollar27.22
Released2019

Specifications

BrandCaldera
ModelCaldera FN-4821 Ultra
Size140 × 140 × 25 mm
Speed300–2,900 RPM (PWM)
Airflow139.2 CFM
Static pressure2.75 mmH₂O
Noise22 dBA
BearingFluid dynamic bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime100,000 hours

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Cite this page: Hardware Spec Index, “Caldera FN-4821 Ultra 140mm PWM ARGB Case Fan”, https://vextor7.com/item/3665352 (accessed 2026-10-20).