Hardware Spec Index

Caldera PW-2146 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW2146-ULTRA · Released 2025 · Updated 2026-10-24

Key facts

Benchmark index1,441 (Power Supplies scale)
Category rank#8,838
Street price$99
Power850 W (rated)
Performance per dollar14.56
Released2025

Specifications

BrandCaldera
ModelCaldera PW-2146 Ultra
Rated output850 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-pin2×
Form factorATX
ModularityFully modular
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Zephyra PW-4112 Max 1600W 80 PLUS Titanium ATX Power Supply2,885$359Compare
Zephyra PW-1846 Plus 750W 80 PLUS Bronze SFX Power Supply1,096$49Compare
Vantrel PW-3687 Pro 1000W 80 PLUS Platinum ATX 3.1 Power Supply2,596$279Compare
Zephyra PW-3200 Edge 1000W 80 PLUS Gold SFX Power Supply1,916$169Compare
Novexa PW-4729 Pro 850W 80 PLUS Gold ATX 3.0 Power Supply1,685$119Compare
Vantrel PW-9728 Plus 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,790$359Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2146 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/3525754 (accessed 2026-10-24).