Hardware Spec Index

Zephyra PW-2883 Ultra 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW2883-ULTRA · Released 2021 · Updated 2026-10-19

Key facts

Benchmark index708 (Power Supplies scale)
Category rank#47,980
Street price$39
Power550 W (rated)
Performance per dollar18.15
Released2021

Specifications

BrandZephyra
ModelZephyra PW-2883 Ultra
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
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
Zephyra PW-2966 SE 550W 80 PLUS Gold ATX 3.1 Power Supply863$39Compare
Caldera PW-1864 Pro 650W 80 PLUS Bronze ATX Power Supply1,225$69Compare
Vantrel PW-1696 Ultra 850W 80 PLUS Gold SFX Power Supply1,434$89Compare
Novexa PW-2844 XT 750W 80 PLUS Gold ATX 3.1 Power Supply1,235$59Compare
Novexa PW-8706 Core 750W 80 PLUS Gold ATX Power Supply1,152$59Compare
Teralux PW-3833 Edge 1000W 80 PLUS Gold ATX Power Supply1,639$139Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-2883 Ultra 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/668202 (accessed 2026-10-19).