Hardware Spec Index

Caldera PW-3520 Ultra 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Caldera · SKU PW3520-ULTRA · Released 2023 · Updated 2026-10-27

Key facts

Benchmark index873 (Power Supplies scale)
Category rank#16,011
Street price$39
Power550 W (rated)
Performance per dollar22.38
Released2023

Specifications

BrandCaldera
ModelCaldera PW-3520 Ultra
Rated output550 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 factorSFX-L
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
Vantrel PW-8194 Core 850W 80 PLUS Gold ATX 3.1 Power Supply1,669$129Compare
Zephyra PW-2735 Core 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,545$269Compare
Teralux PW-3515 Core 750W 80 PLUS Gold SFX Power Supply1,443$99Compare
Zephyra PW-9252 Ti 850W 80 PLUS Gold ATX Power Supply1,663$139Compare
Caldera PW-8513 SE 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,724$319Compare
Vantrel PW-5803 Prime 550W 80 PLUS Gold ATX 3.1 Power Supply1,151$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-3520 Ultra 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/5883833 (accessed 2026-10-27).