Hardware Spec Index

Caldera PW-5249 Ultra 850W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW5249-ULTRA · Released 2023 · Updated 2026-10-18

Key facts

Benchmark index1,201 (Power Supplies scale)
Category rank#17,239
Street price$59
Power850 W (rated)
Performance per dollar20.36
Released2023

Specifications

BrandCaldera
ModelCaldera PW-5249 Ultra
Rated output850 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin2×
Form factorATX
ModularityNon-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
Novexa PW-7464 Core 1600W 80 PLUS Gold ATX 3.0 Power Supply2,449$289Compare
Zephyra PW-9740 Max 850W 80 PLUS Gold ATX Power Supply1,237$59Compare
Teralux PW-2307 Edge 1000W 80 PLUS Gold ATX Power Supply1,768$119Compare
Vantrel PW-2046 Pro 1000W 80 PLUS Platinum ATX 3.0 Power Supply2,017$149Compare
Novexa PW-2902 Core 1000W 80 PLUS Platinum ATX Power Supply2,400$209Compare
Teralux PW-1564 Core 550W 80 PLUS Gold ATX 3.1 Power Supply729$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-5249 Ultra 850W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/19086519 (accessed 2026-10-18).