Hardware Spec Index

Zephyra PW-4640 Core 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW4640-CORE · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index948 (Power Supplies scale)
Category rank#7,780
Street price$49
Power550 W (rated)
Performance per dollar19.35
Released2024

Specifications

BrandZephyra
ModelZephyra PW-4640 Core
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 factorATX
ModularitySemi-modular
Fan135 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-4053 SE 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,715$339Compare
Novexa PW-2583 Pro 650W 80 PLUS Bronze ATX 3.0 Power Supply1,139$59Compare
Novexa PW-5885 Ti 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,491$309Compare
Novexa PW-8618 Prime 1300W 80 PLUS Platinum ATX Power Supply2,179$219Compare
Teralux PW-5560 Prime 850W 80 PLUS Gold ATX 3.1 Power Supply1,769$119Compare
Novexa PW-9855 SE 1200W 80 PLUS Gold ATX 3.0 Power Supply2,272$239Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4640 Core 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/1081967 (accessed 2026-10-21).