Hardware Spec Index

Zephyra PW-5521 Core 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW5521-CORE · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index1,408 (Power Supplies scale)
Category rank#3,394
Street price$69
Power850 W (rated)
Performance per dollar20.41
Released2025

Specifications

BrandZephyra
ModelZephyra PW-5521 Core
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan140 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-2123 Pro 850W 80 PLUS Gold ATX 3.0 Power Supply1,757$119Compare
Caldera PW-5406 Plus 550W 80 PLUS Gold SFX Power Supply1,055$49Compare
Caldera PW-7830 Max 1300W 80 PLUS Titanium ATX Power Supply2,555$299Compare
Novexa PW-7832 SE 550W 80 PLUS Gold ATX 3.0 Power Supply872$39Compare
Zephyra PW-8167 Ultra 650W 80 PLUS Bronze SFX Power Supply1,191$59Compare
Teralux PW-4847 Plus 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,723$359Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-5521 Core 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/17700554 (accessed 2026-10-21).