Hardware Spec Index

Zephyra PW-9733 Prime 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Zephyra · SKU PW9733-PRIME · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index1,098 (Power Supplies scale)
Category rank#39,179
Street price$59
Power550 W (rated)
Performance per dollar18.61
Released2021

Specifications

BrandZephyra
ModelZephyra PW-9733 Prime
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorSFX-L
ModularitySemi-modular
Fan120 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
Teralux PW-6341 Pro 1000W 80 PLUS Gold SFX Power Supply2,027$179Compare
Novexa PW-5057 Prime 550W 80 PLUS Bronze ATX 3.0 Power Supply850$49Compare
Vantrel PW-4134 SE 1200W 80 PLUS Gold ATX Power Supply2,208$179Compare
Zephyra PW-8861 SE 1000W 80 PLUS Platinum ATX Power Supply1,947$189Compare
Novexa PW-6181 Core 1000W 80 PLUS Gold ATX Power Supply1,879$169Compare
Caldera PW-7901 SE 850W 80 PLUS Gold ATX 3.1 Power Supply1,713$149Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9733 Prime 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/778442 (accessed 2026-10-19).