Hardware Spec Index

Caldera PW-2839 Prime 650W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW2839-PRIME · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index1,418 (Power Supplies scale)
Category rank#17,783
Street price$79
Power650 W (rated)
Performance per dollar17.95
Released2026

Specifications

BrandCaldera
ModelCaldera PW-2839 Prime
Rated output650 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-pin1×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty5 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Zephyra PW-7276 Ultra 650W 80 PLUS Gold SFX Power Supply1,403$89Compare
Caldera PW-2165 Ti 650W 80 PLUS Gold ATX Power Supply1,331$79Compare
Teralux PW-6002 Edge 1300W 80 PLUS Titanium ATX Power Supply2,764$309Compare
Caldera PW-3194 XT 850W 80 PLUS Gold ATX 3.0 Power Supply1,669$119Compare
Teralux PW-7695 Ti 850W 80 PLUS Gold ATX 3.0 Power Supply1,638$139Compare
Zephyra PW-6892 Core 750W 80 PLUS Gold ATX 3.1 Power Supply1,411$79Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2839 Prime 650W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/19645965 (accessed 2026-10-19).