Hardware Spec Index

Zephyra PW-4084 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW4084-ULTRA · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index819 (Power Supplies scale)
Category rank#31,629
Street price$39
Power550 W (rated)
Performance per dollar21.00
Released2026

Specifications

BrandZephyra
ModelZephyra PW-4084 Ultra
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorATX
ModularityNon-modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Teralux PW-1008 Edge 850W 80 PLUS Gold ATX 3.0 Power Supply1,724$139Compare
Novexa PW-3203 Pro 850W 80 PLUS Bronze SFX Power Supply1,506$99Compare
Teralux PW-3308 Edge 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,470$289Compare
Teralux PW-1239 Plus 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,344$279Compare
Vantrel PW-5718 Prime 850W 80 PLUS Gold ATX 3.0 Power Supply1,568$99Compare
Caldera PW-6781 Edge 750W 80 PLUS Bronze SFX Power Supply1,008$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4084 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/4285585 (accessed 2026-10-22).