Hardware Spec Index

Caldera PW-2558 XT 850W 80 PLUS Gold SFX Power Supply

Power Supplies · Caldera · SKU PW2558-XT · Released 2024 · Updated 2026-10-25

Key facts

Benchmark index1,442 (Power Supplies scale)
Category rank#46,226
Street price$89
Power850 W (rated)
Performance per dollar16.20
Released2024

Specifications

BrandCaldera
ModelCaldera PW-2558 XT
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
Warranty10 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-9800 Plus 850W 80 PLUS Gold ATX Power Supply1,779$119Compare
Zephyra PW-6676 Max 1300W 80 PLUS Titanium ATX Power Supply2,869$379Compare
Novexa PW-2168 XT 750W 80 PLUS Gold ATX 3.1 Power Supply1,404$69Compare
Novexa PW-4010 Ti 1200W 80 PLUS Gold ATX 3.0 Power Supply2,211$189Compare
Zephyra PW-2595 Prime 750W 80 PLUS Gold ATX 3.0 Power Supply1,274$69Compare
Teralux PW-5870 Ti 850W 80 PLUS Gold SFX Power Supply1,562$109Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2558 XT 850W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/96863704 (accessed 2026-10-25).