Hardware Spec Index

Zephyra FN-1781 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN1781-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index1,372 (Case Fans scale)
Category rank#22,022
Street price$49
Power3 W
Performance per dollar28.00
Released2020

Specifications

BrandZephyra
ModelZephyra FN-1781 Ultra
Size120 × 120 × 25 mm
Speed300–2,100 RPM (PWM)
Airflow71.4 CFM
Static pressure2.31 mmH₂O
Noise23 dBA
BearingRifle bearing
Connector4-pin PWM + 3-pin 5V ARGB
Rated lifetime50,000 hours

Related guides

AIO Liquid Cooling vs Air Cooling for CPUs

Similar Case Fans

ModelBenchmarkPriceCompare
Corvane FN-4242 XT 140mm PWM Case Fan303$9Compare
Caldera FN-3391 Ultra 120mm PWM ARGB Case Fan (3-Pack)1,240$39Compare
Zephyra FN-3307 Ultra 120mm PWM Case Fan593$19Compare
Brontix FN-8603 Pro 120mm PWM Case Fan (3-Pack)291$9Compare
Brontix FN-3662 Prime 120mm PWM Case Fan330$9Compare
Corvane FN-4298 Ultra 140mm PWM ARGB Case Fan (3-Pack)977$29Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-1781 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/94511900 (accessed 2026-10-25).