Hardware Spec Index

Caldera PW-1841 Ultra 1000W 80 PLUS Platinum ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW1841-ULTRA · Released 2026 · Updated 2026-10-21

Key facts

Benchmark index2,231 (Power Supplies scale)
Category rank#30,012
Street price$229
Power1000 W (rated)
Performance per dollar9.74
Released2026

Specifications

BrandCaldera
ModelCaldera PW-1841 Ultra
Rated output1,000 W continuous
Efficiency80 PLUS Platinum (92% 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-2645 XT 750W 80 PLUS Gold ATX 3.1 Power Supply1,013$59Compare
Teralux PW-3394 Prime 1600W 80 PLUS Titanium ATX Power Supply2,470$299Compare
Caldera PW-1647 Pro 1000W 80 PLUS Gold ATX 3.0 Power Supply2,030$189Compare
Vantrel PW-7945 Ultra 850W 80 PLUS Gold SFX Power Supply1,720$119Compare
Zephyra PW-1232 Core 650W 80 PLUS Gold ATX Power Supply1,137$59Compare
Zephyra PW-9775 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply1,443$99Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-1841 Ultra 1000W 80 PLUS Platinum ATX 3.1 Power Supply”, https://vextor7.com/item/96522820 (accessed 2026-10-21).