Hardware Spec Index

Zephyra PW-4259 Prime 850W 80 PLUS Gold SFX Power Supply

Power Supplies · Zephyra · SKU PW4259-PRIME · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index1,543 (Power Supplies scale)
Category rank#40,237
Street price$109
Power850 W (rated)
Performance per dollar14.16
Released2026

Specifications

BrandZephyra
ModelZephyra PW-4259 Prime
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 factorSFX-L
ModularityFully 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
Teralux PW-2343 Ultra 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,770$359Compare
Zephyra PW-4390 Ti 1300W 80 PLUS Platinum ATX Power Supply2,635$319Compare
Novexa PW-4576 Core 1200W 80 PLUS Gold ATX 3.1 Power Supply2,233$219Compare
Zephyra PW-6490 Plus 550W 80 PLUS Bronze ATX 3.0 Power Supply763$39Compare
Vantrel PW-4092 SE 550W 80 PLUS Bronze ATX 3.1 Power Supply730$39Compare
Teralux PW-1211 Ti 750W 80 PLUS Bronze ATX Power Supply1,078$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-4259 Prime 850W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/6418283 (accessed 2026-10-25).