Hardware Spec Index

Zephyra PW-4338 Ultra 550W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW4338-ULTRA · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index1,156 (Power Supplies scale)
Category rank#9,340
Street price$59
Power550 W (rated)
Performance per dollar19.59
Released2024

Specifications

BrandZephyra
ModelZephyra PW-4338 Ultra
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorATX
ModularityFully 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
Caldera PW-8809 Edge 1000W 80 PLUS Platinum ATX Power Supply2,101$209Compare
Vantrel PW-6861 Edge 650W 80 PLUS Bronze ATX 3.1 Power Supply762$39Compare
Teralux PW-4992 SE 1000W 80 PLUS Gold SFX Power Supply2,027$159Compare
Zephyra PW-7438 XT 750W 80 PLUS Gold ATX 3.1 Power Supply1,222$59Compare
Caldera PW-2562 SE 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,469$229Compare
Novexa PW-9305 Pro 750W 80 PLUS Gold ATX 3.1 Power Supply1,171$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4338 Ultra 550W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/7125650 (accessed 2026-10-25).