Hardware Spec Index

Zephyra FN-1643 Ultra 120mm PWM ARGB Case Fan

Case Fans · Zephyra · SKU FN1643-ULTRA · Released 2021 · Updated 2026-10-25

Key facts

Benchmark index1,248 (Case Fans scale)
Category rank#46,310
Street price$39
Power3 W
Performance per dollar32.00
Released2021

Specifications

BrandZephyra
ModelZephyra FN-1643 Ultra
Size120 × 120 × 25 mm
Speed200–1,600 RPM (PWM)
Airflow54.4 CFM
Static pressure1.76 mmH₂O
Noise35 dBA
BearingMagnetic levitation
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
Brontix FN-5903 Max 120mm PWM ARGB Case Fan1,047$29Compare
Zephyra FN-4442 XT 120mm PWM ARGB Case Fan (3-Pack)1,089$39Compare
Caldera FN-7103 Ti 140mm PWM Case Fan294$9Compare
Caldera FN-9773 Plus 140mm PWM Case Fan (3-Pack)684$19Compare
Brontix FN-8801 Prime 140mm PWM Case Fan399$19Compare
Corvane FN-8818 XT 120mm PWM Case Fan215$9Compare

All Case Fans · JSON

Cite this page: Hardware Spec Index, “Zephyra FN-1643 Ultra 120mm PWM ARGB Case Fan”, https://vextor7.com/item/33709585 (accessed 2026-10-25).