Hardware Spec Index

Zephyra FN-1881 Ultra 140mm PWM Case Fan (3-Pack)

Case Fans · Zephyra · SKU FN1881-ULTRA · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index716 (Case Fans scale)
Category rank#2,029
Street price$19
Power3 W
Performance per dollar37.68
Released2021

Specifications

BrandZephyra
ModelZephyra FN-1881 Ultra
Size140 × 140 × 25 mm
Speed400–1,500 RPM (PWM)
Airflow72.0 CFM
Static pressure1.43 mmH₂O
Noise31 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-1835 Core 140mm PWM ARGB Case Fan1,055$29Compare
Corvane FN-4131 Pro 120mm PWM Case Fan557$19Compare
Brontix FN-2533 Max 140mm PWM ARGB Case Fan1,109$39Compare
Corvane FN-3685 Pro 120mm PWM Case Fan769$19Compare
Zephyra FN-9150 Ti 120mm PWM Case Fan497$19Compare
Corvane FN-5736 Prime 120mm PWM Case Fan321$9Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-1881 Ultra 140mm PWM Case Fan (3-Pack)”, https://vextor7.com/item/2548418 (accessed 2026-10-24).