Hardware Spec Index

Zephyra PW-6578 XT 550W 80 PLUS Gold SFX Power Supply

Power Supplies · Zephyra · SKU PW6578-XT · Released 2025 · Updated 2026-10-27

Key facts

Benchmark index1,080 (Power Supplies scale)
Category rank#3,998
Street price$59
Power550 W (rated)
Performance per dollar18.31
Released2025

Specifications

BrandZephyra
ModelZephyra PW-6578 XT
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 factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty7 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Zephyra PW-9298 Ultra 1600W 80 PLUS Titanium ATX Power Supply2,828$369Compare
Novexa PW-1476 Pro 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,731$339Compare
Novexa PW-7716 XT 1600W 80 PLUS Gold ATX 3.0 Power Supply2,416$289Compare
Teralux PW-6652 Prime 850W 80 PLUS Gold ATX Power Supply1,478$99Compare
Caldera PW-4406 Plus 750W 80 PLUS Bronze ATX Power Supply939$49Compare
Zephyra PW-8876 Ultra 1600W 80 PLUS Platinum ATX 3.0 Power Supply2,980$399Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-6578 XT 550W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/65633306 (accessed 2026-10-27).