Hardware Spec Index

Zephyra PW-4385 Max 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW4385-MAX · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index986 (Power Supplies scale)
Category rank#4,039
Street price$49
Power550 W (rated)
Performance per dollar20.12
Released2024

Specifications

BrandZephyra
ModelZephyra PW-4385 Max
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorATX
ModularitySemi-modular
Fan135 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-3021 Pro 850W 80 PLUS Gold ATX 3.1 Power Supply1,836$139Compare
Vantrel PW-5057 SE 1300W 80 PLUS Platinum ATX Power Supply2,735$339Compare
Caldera PW-6402 Max 550W 80 PLUS Gold ATX 3.1 Power Supply1,049$49Compare
Zephyra PW-6591 XT 850W 80 PLUS Gold ATX 3.1 Power Supply1,708$129Compare
Caldera PW-3326 Ultra 1300W 80 PLUS Gold ATX Power Supply2,522$239Compare
Zephyra PW-1015 Ti 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,609$359Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4385 Max 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/1744264 (accessed 2026-10-22).