Hardware Spec Index

Caldera PW-5421 Prime 650W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW5421-PRIME · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index1,001 (Power Supplies scale)
Category rank#15,880
Street price$49
Power650 W (rated)
Performance per dollar20.43
Released2025

Specifications

BrandCaldera
ModelCaldera PW-5421 Prime
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (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
Warranty5 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Teralux PW-2543 XT 1000W 80 PLUS Platinum ATX Power Supply1,768$149Compare
Teralux PW-9845 Ultra 1000W 80 PLUS Gold ATX Power Supply1,609$109Compare
Zephyra PW-8051 Max 1000W 80 PLUS Platinum SFX Power Supply2,645$269Compare
Novexa PW-2190 Ti 550W 80 PLUS Bronze SFX Power Supply930$39Compare
Caldera PW-3603 Edge 850W 80 PLUS Bronze ATX 3.0 Power Supply1,259$69Compare
Vantrel PW-2468 Ti 550W 80 PLUS Gold ATX 3.1 Power Supply813$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-5421 Prime 650W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/298787 (accessed 2026-10-20).