Hardware Spec Index

Zephyra PW-9949 Ultra 550W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Zephyra · SKU PW9949-ULTRA · Released 2022 · Updated 2026-10-19

Key facts

Benchmark index951 (Power Supplies scale)
Category rank#17,944
Street price$49
Power550 W (rated)
Performance per dollar19.41
Released2022

Specifications

BrandZephyra
ModelZephyra PW-9949 Ultra
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin1×
Form factorATX
ModularityFully modular
Fan135 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
Novexa PW-9638 SE 550W 80 PLUS Bronze ATX Power Supply889$39Compare
Zephyra PW-9997 Ultra 650W 80 PLUS Bronze ATX 3.1 Power Supply1,181$69Compare
Vantrel PW-3191 Ultra 1000W 80 PLUS Gold ATX 3.0 Power Supply2,101$189Compare
Caldera PW-8748 Ti 550W 80 PLUS Bronze SFX Power Supply794$39Compare
Vantrel PW-7348 SE 650W 80 PLUS Bronze ATX 3.0 Power Supply818$39Compare
Zephyra PW-3417 Prime 650W 80 PLUS Gold ATX 3.1 Power Supply709$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9949 Ultra 550W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/2744893 (accessed 2026-10-19).