Hardware Spec Index

Caldera PW-4039 Prime 550W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW4039-PRIME · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index839 (Power Supplies scale)
Category rank#19,846
Street price$39
Power550 W (rated)
Performance per dollar21.51
Released2021

Specifications

BrandCaldera
ModelCaldera PW-4039 Prime
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Vantrel PW-4319 XT 850W 80 PLUS Gold ATX Power Supply1,892$149Compare
Caldera PW-5375 Prime 850W 80 PLUS Gold ATX Power Supply1,383$79Compare
Caldera PW-4574 Ti 1000W 80 PLUS Titanium ATX Power Supply2,337$219Compare
Zephyra PW-6093 Core 650W 80 PLUS Gold SFX Power Supply1,130$49Compare
Caldera PW-6889 Max 1000W 80 PLUS Gold SFX Power Supply2,415$239Compare
Vantrel PW-1799 Max 1000W 80 PLUS Gold ATX 3.0 Power Supply1,840$139Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-4039 Prime 550W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/3214725 (accessed 2026-10-20).