Hardware Spec Index

Zephyra PW-5311 Core 550W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Zephyra · SKU PW5311-CORE · Released 2022 · Updated 2026-10-23

Key facts

Benchmark index960 (Power Supplies scale)
Category rank#27,483
Street price$49
Power550 W (rated)
Performance per dollar19.59
Released2022

Specifications

BrandZephyra
ModelZephyra PW-5311 Core
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin1×
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
Caldera PW-7405 Ti 1000W 80 PLUS Titanium SFX Power Supply2,467$279Compare
Caldera PW-9369 Core 1200W 80 PLUS Platinum ATX Power Supply2,427$289Compare
Novexa PW-8696 XT 650W 80 PLUS Bronze ATX Power Supply1,206$59Compare
Novexa PW-3128 Ti 650W 80 PLUS Bronze ATX Power Supply1,035$49Compare
Novexa PW-1776 Core 1000W 80 PLUS Gold ATX 3.0 Power Supply1,818$129Compare
Zephyra PW-7379 Max 750W 80 PLUS Gold ATX 3.0 Power Supply1,157$69Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-5311 Core 550W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/54892710 (accessed 2026-10-23).