Hardware Spec Index

Caldera PW-1878 Prime 650W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Caldera · SKU PW1878-PRIME · Released 2023 · Updated 2026-10-19

Key facts

Benchmark index833 (Power Supplies scale)
Category rank#44,231
Street price$39
Power650 W (rated)
Performance per dollar21.36
Released2023

Specifications

BrandCaldera
ModelCaldera PW-1878 Prime
Rated output650 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-pin1×
Form factorATX
ModularitySemi-modular
Fan120 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
Caldera PW-4310 Pro 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,820$399Compare
Teralux PW-4509 Prime 850W 80 PLUS Gold ATX Power Supply1,396$89Compare
Teralux PW-3067 Max 850W 80 PLUS Platinum ATX 3.1 Power Supply1,921$149Compare
Vantrel PW-2989 SE 650W 80 PLUS Bronze SFX Power Supply1,319$69Compare
Teralux PW-5507 SE 650W 80 PLUS Gold ATX Power Supply1,292$69Compare
Teralux PW-7702 Ti 550W 80 PLUS Gold ATX 3.0 Power Supply1,050$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-1878 Prime 650W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/9962250 (accessed 2026-10-19).