Hardware Spec Index

Caldera PW-2800 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW2800-ULTRA · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index1,812 (Power Supplies scale)
Category rank#20,344
Street price$149
Power850 W (rated)
Performance per dollar12.16
Released2022

Specifications

BrandCaldera
ModelCaldera PW-2800 Ultra
Rated output850 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-pin2×
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-6421 Ti 650W 80 PLUS Bronze ATX 3.0 Power Supply947$49Compare
Vantrel PW-9451 XT 1600W 80 PLUS Titanium ATX Power Supply2,980$399Compare
Vantrel PW-2166 Pro 1200W 80 PLUS Gold ATX 3.1 Power Supply2,113$219Compare
Novexa PW-4854 Max 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,980$349Compare
Novexa PW-7712 Prime 1000W 80 PLUS Gold SFX Power Supply2,112$199Compare
Caldera PW-8259 XT 1000W 80 PLUS Gold ATX Power Supply2,154$199Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2800 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/8466957 (accessed 2026-10-21).