Hardware Spec Index

Zephyra PW-2303 Max 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW2303-MAX · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index1,073 (Power Supplies scale)
Category rank#24,891
Street price$49
Power550 W (rated)
Performance per dollar21.90
Released2025

Specifications

BrandZephyra
ModelZephyra PW-2303 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
ModularityNon-modular
Fan120 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
Zephyra PW-4522 XT 1600W 80 PLUS Platinum ATX Power Supply2,980$399Compare
Caldera PW-8123 XT 850W 80 PLUS Gold ATX Power Supply2,084$179Compare
Teralux PW-7510 Ultra 1600W 80 PLUS Platinum ATX Power Supply2,644$369Compare
Novexa PW-1587 Prime 550W 80 PLUS Gold ATX 3.1 Power Supply753$39Compare
Caldera PW-5885 XT 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,875$359Compare
Caldera PW-5128 Ultra 1000W 80 PLUS Gold ATX 3.1 Power Supply1,783$149Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-2303 Max 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/8513853 (accessed 2026-10-21).