Hardware Spec Index

Caldera PW-5390 Ultra 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Caldera · SKU PW5390-ULTRA · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index873 (Power Supplies scale)
Category rank#47,671
Street price$49
Power550 W (rated)
Performance per dollar17.82
Released2021

Specifications

BrandCaldera
ModelCaldera PW-5390 Ultra
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorSFX-L
ModularitySemi-modular
Fan120 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
Novexa PW-1952 SE 650W 80 PLUS Bronze ATX 3.0 Power Supply955$39Compare
Novexa PW-4590 Plus 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,309$229Compare
Teralux PW-3171 Core 1200W 80 PLUS Gold ATX 3.1 Power Supply2,215$249Compare
Vantrel PW-2048 Ti 750W 80 PLUS Gold ATX 3.1 Power Supply1,443$109Compare
Teralux PW-3465 Pro 1000W 80 PLUS Titanium ATX 3.1 Power Supply2,448$279Compare
Teralux PW-5799 Ti 650W 80 PLUS Bronze ATX 3.0 Power Supply1,116$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-5390 Ultra 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/16201385 (accessed 2026-10-22).