Hardware Spec Index

Zephyra PW-3298 Ultra 650W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW3298-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index773 (Power Supplies scale)
Category rank#23,603
Street price$39
Power650 W (rated)
Performance per dollar19.82
Released2021

Specifications

BrandZephyra
ModelZephyra PW-3298 Ultra
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Caldera PW-1239 Max 1000W 80 PLUS Gold ATX 3.0 Power Supply1,697$129Compare
Novexa PW-9977 SE 1000W 80 PLUS Gold SFX Power Supply1,693$119Compare
Teralux PW-8798 Ultra 1200W 80 PLUS Titanium ATX Power Supply2,511$279Compare
Teralux PW-2278 Core 550W 80 PLUS Bronze ATX 3.0 Power Supply755$39Compare
Novexa PW-6047 Edge 850W 80 PLUS Gold ATX Power Supply1,861$129Compare
Caldera PW-9687 XT 750W 80 PLUS Gold ATX 3.1 Power Supply1,319$69Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-3298 Ultra 650W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/761807 (accessed 2026-10-20).