Hardware Spec Index

Zephyra PW-5559 Ti 550W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Zephyra · SKU PW5559-TI · Released 2022 · Updated 2026-10-22

Key facts

Benchmark index1,049 (Power Supplies scale)
Category rank#23,231
Street price$59
Power550 W (rated)
Performance per dollar17.78
Released2022

Specifications

BrandZephyra
ModelZephyra PW-5559 Ti
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
ModularityNon-modular
Fan135 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

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-8676 XT 850W 80 PLUS Gold ATX 3.1 Power Supply1,815$169Compare
Caldera PW-6947 Ultra 750W 80 PLUS Gold ATX 3.1 Power Supply1,093$49Compare
Novexa PW-9092 XT 550W 80 PLUS Bronze ATX 3.0 Power Supply941$49Compare
Caldera PW-2081 SE 650W 80 PLUS Bronze ATX Power Supply1,114$59Compare
Novexa PW-6311 Max 850W 80 PLUS Gold ATX Power Supply1,466$99Compare
Teralux PW-7578 Ultra 650W 80 PLUS Bronze ATX Power Supply1,365$69Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-5559 Ti 550W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/6676090 (accessed 2026-10-22).