Hardware Spec Index

Caldera PW-4403 Plus 1000W 80 PLUS Platinum ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW4403-PLUS · Released 2022 · Updated 2026-10-18

Key facts

Benchmark index2,405 (Power Supplies scale)
Category rank#41,845
Street price$229
Power1000 W (rated)
Performance per dollar10.50
Released2022

Specifications

BrandCaldera
ModelCaldera PW-4403 Plus
Rated output1,000 W continuous
Efficiency80 PLUS Platinum (92% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty12 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Zephyra PW-6846 Ti 1000W 80 PLUS Platinum SFX Power Supply2,426$259Compare
Novexa PW-5294 Ti 1000W 80 PLUS Gold ATX 3.0 Power Supply2,106$199Compare
Caldera PW-3434 Ti 1000W 80 PLUS Platinum SFX Power Supply2,530$319Compare
Novexa PW-2936 XT 1200W 80 PLUS Platinum ATX Power Supply2,698$349Compare
Novexa PW-2044 Max 1300W 80 PLUS Platinum ATX 3.0 Power Supply2,483$269Compare
Teralux PW-5308 Pro 1200W 80 PLUS Gold ATX Power Supply2,373$239Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4403 Plus 1000W 80 PLUS Platinum ATX 3.0 Power Supply”, https://vextor7.com/item/85646788 (accessed 2026-10-18).