Hardware Spec Index

Caldera PW-9358 Ultra 850W 80 PLUS Platinum ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW9358-ULTRA · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index1,887 (Power Supplies scale)
Category rank#42,109
Street price$139
Power850 W (rated)
Performance per dollar13.58
Released2024

Specifications

BrandCaldera
ModelCaldera PW-9358 Ultra
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
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty7 years

Related guides

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

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Cite this page: Hardware Spec Index, “Caldera PW-9358 Ultra 850W 80 PLUS Platinum ATX 3.1 Power Supply”, https://vextor7.com/item/178764 (accessed 2026-10-21).