Hardware Spec Index

Zephyra PW-9299 Pro 550W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Zephyra · SKU PW9299-PRO · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index719 (Power Supplies scale)
Category rank#39,777
Street price$39
Power550 W (rated)
Performance per dollar18.44
Released2023

Specifications

BrandZephyra
ModelZephyra PW-9299 Pro
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin1×
Form factorATX
ModularitySemi-modular
Fan140 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

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Cite this page: Hardware Spec Index, “Zephyra PW-9299 Pro 550W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/93313409 (accessed 2026-10-19).