Hardware Spec Index

Zephyra PW-3991 Core 750W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW3991-CORE · Released 2024 · Updated 2026-10-20

Key facts

Benchmark index1,264 (Power Supplies scale)
Category rank#4,994
Street price$69
Power750 W (rated)
Performance per dollar18.32
Released2024

Specifications

BrandZephyra
ModelZephyra PW-3991 Core
Rated output750 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
Warranty10 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Zephyra PW-2320 Ultra 1000W 80 PLUS Gold ATX 3.1 Power Supply1,646$129Compare
Vantrel PW-1969 Pro 750W 80 PLUS Gold SFX Power Supply1,100$59Compare
Zephyra PW-9694 Ti 650W 80 PLUS Gold ATX 3.1 Power Supply1,048$59Compare
Zephyra PW-4726 Plus 1000W 80 PLUS Gold ATX 3.1 Power Supply2,065$199Compare
Zephyra PW-8493 XT 1000W 80 PLUS Titanium ATX Power Supply2,332$219Compare
Novexa PW-3363 XT 1200W 80 PLUS Gold ATX 3.1 Power Supply2,305$239Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-3991 Core 750W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/2590852 (accessed 2026-10-20).