Hardware Spec Index

Caldera PW-4903 Max 1000W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW4903-MAX · Released 2026 · Updated 2026-10-24

Key facts

Benchmark index1,692 (Power Supplies scale)
Category rank#39,927
Street price$119
Power1000 W (rated)
Performance per dollar14.22
Released2026

Specifications

BrandCaldera
ModelCaldera PW-4903 Max
Rated output1,000 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-pin3×
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
Caldera PW-8095 Plus 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,857$349Compare
Zephyra PW-2216 Edge 650W 80 PLUS Bronze SFX Power Supply894$39Compare
Zephyra PW-5294 Pro 750W 80 PLUS Bronze ATX 3.1 Power Supply1,054$59Compare
Teralux PW-9610 SE 850W 80 PLUS Gold ATX 3.0 Power Supply1,452$89Compare
Zephyra PW-3724 Ti 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,874$349Compare
Zephyra PW-7565 XT 650W 80 PLUS Gold ATX 3.1 Power Supply1,293$69Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4903 Max 1000W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/7559893 (accessed 2026-10-24).