Hardware Spec Index

Caldera PW-4394 Ultra 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW4394-ULTRA · Released 2019 · Updated 2026-10-19

Key facts

Benchmark index1,626 (Power Supplies scale)
Category rank#18,261
Street price$139
Power850 W (rated)
Performance per dollar11.70
Released2019

Specifications

BrandCaldera
ModelCaldera PW-4394 Ultra
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-7755 SE 1000W 80 PLUS Platinum ATX Power Supply2,245$219Compare
Novexa PW-8221 Plus 1000W 80 PLUS Platinum ATX Power Supply2,387$219Compare
Zephyra PW-9348 Plus 650W 80 PLUS Gold ATX 3.1 Power Supply1,259$79Compare
Vantrel PW-7374 SE 1000W 80 PLUS Gold ATX 3.1 Power Supply2,348$219Compare
Teralux PW-2339 Plus 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,595$369Compare
Vantrel PW-7380 Plus 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,734$349Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4394 Ultra 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/76353715 (accessed 2026-10-19).