Hardware Spec Index

Zephyra PW-8303 Core 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW8303-CORE · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index799 (Power Supplies scale)
Category rank#8,207
Street price$39
Power550 W (rated)
Performance per dollar20.49
Released2020

Specifications

BrandZephyra
ModelZephyra PW-8303 Core
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityNon-modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Teralux PW-6673 Core 1600W 80 PLUS Gold ATX Power Supply2,666$279Compare
Caldera PW-4620 XT 550W 80 PLUS Gold ATX 3.1 Power Supply786$39Compare
Teralux PW-7611 Pro 1000W 80 PLUS Gold ATX Power Supply1,789$159Compare
Zephyra PW-3681 Core 750W 80 PLUS Bronze ATX Power Supply1,382$69Compare
Zephyra PW-1550 Ti 850W 80 PLUS Bronze ATX 3.1 Power Supply1,390$89Compare
Vantrel PW-4121 Max 1000W 80 PLUS Titanium ATX 3.1 Power Supply2,256$229Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-8303 Core 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/85538358 (accessed 2026-10-21).