Hardware Spec Index

Caldera PW-6466 Ultra 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Caldera · SKU PW6466-ULTRA · Released 2021 · Updated 2026-10-22

Key facts

Benchmark index868 (Power Supplies scale)
Category rank#18,730
Street price$39
Power550 W (rated)
Performance per dollar22.26
Released2021

Specifications

BrandCaldera
ModelCaldera PW-6466 Ultra
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
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
Caldera PW-4327 Pro 550W 80 PLUS Gold ATX 3.1 Power Supply1,086$59Compare
Vantrel PW-7921 SE 650W 80 PLUS Bronze ATX Power Supply802$39Compare
Zephyra PW-8657 Pro 750W 80 PLUS Gold ATX Power Supply1,557$99Compare
Novexa PW-2335 Max 550W 80 PLUS Bronze ATX 3.1 Power Supply893$39Compare
Teralux PW-3213 Ultra 1300W 80 PLUS Gold ATX 3.0 Power Supply2,390$269Compare
Novexa PW-8359 Ultra 1300W 80 PLUS Platinum ATX Power Supply2,498$319Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-6466 Ultra 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/6571245 (accessed 2026-10-22).