Hardware Spec Index

Caldera PW-1281 Plus 1000W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW1281-PLUS · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index2,279 (Power Supplies scale)
Category rank#48,699
Street price$229
Power1000 W (rated)
Performance per dollar9.95
Released2023

Specifications

BrandCaldera
ModelCaldera PW-1281 Plus
Rated output1,000 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan140 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-7595 Pro 650W 80 PLUS Gold ATX Power Supply795$39Compare
Caldera PW-5651 Prime 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,631$309Compare
Caldera PW-8591 Edge 550W 80 PLUS Gold ATX 3.1 Power Supply706$39Compare
Novexa PW-5510 XT 1000W 80 PLUS Platinum ATX 3.0 Power Supply2,280$249Compare
Zephyra PW-3979 Pro 1000W 80 PLUS Platinum ATX 3.0 Power Supply2,157$199Compare
Novexa PW-5179 Pro 750W 80 PLUS Bronze ATX Power Supply1,264$79Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-1281 Plus 1000W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/9107544 (accessed 2026-10-19).