Hardware Spec Index

Zephyra PW-5881 Max 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Zephyra · SKU PW5881-MAX · Released 2026 · Updated 2026-10-23

Key facts

Benchmark index981 (Power Supplies scale)
Category rank#16,636
Street price$39
Power550 W (rated)
Performance per dollar25.15
Released2026

Specifications

BrandZephyra
ModelZephyra PW-5881 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 factorSFX-L
ModularitySemi-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
Caldera PW-4057 SE 550W 80 PLUS Bronze ATX Power Supply945$49Compare
Caldera PW-5450 Ultra 1300W 80 PLUS Gold ATX 3.1 Power Supply2,373$259Compare
Vantrel PW-5822 Prime 1300W 80 PLUS Titanium ATX Power Supply2,423$259Compare
Novexa PW-6962 Ti 750W 80 PLUS Gold ATX Power Supply1,173$59Compare
Vantrel PW-1726 Ti 850W 80 PLUS Gold ATX 3.1 Power Supply1,619$129Compare
Teralux PW-3278 Core 550W 80 PLUS Bronze ATX 3.0 Power Supply940$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-5881 Max 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/9560190 (accessed 2026-10-23).