Hardware Spec Index

Zephyra PW-9458 Max 850W 80 PLUS Platinum ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW9458-MAX · Released 2025 · Updated 2026-10-21

Key facts

Benchmark index2,005 (Power Supplies scale)
Category rank#33,832
Street price$209
Power850 W (rated)
Performance per dollar9.59
Released2025

Specifications

BrandZephyra
ModelZephyra PW-9458 Max
Rated output850 W continuous
Efficiency80 PLUS Platinum (92% 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
Fan120 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-8242 Prime 1000W 80 PLUS Gold ATX Power Supply2,258$219Compare
Caldera PW-5790 Ultra 550W 80 PLUS Gold ATX Power Supply885$39Compare
Zephyra PW-1358 XT 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,980$399Compare
Zephyra PW-5642 Plus 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,871$359Compare
Caldera PW-7292 SE 1000W 80 PLUS Gold SFX Power Supply1,964$159Compare
Caldera PW-9144 Core 1300W 80 PLUS Gold ATX 3.0 Power Supply2,320$279Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9458 Max 850W 80 PLUS Platinum ATX 3.1 Power Supply”, https://vextor7.com/item/9564965 (accessed 2026-10-21).