Hardware Spec Index

Caldera PW-2061 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW2061-ULTRA · Released 2025 · Updated 2026-10-23

Key facts

Benchmark index968 (Power Supplies scale)
Category rank#3,978
Street price$49
Power550 W (rated)
Performance per dollar19.76
Released2025

Specifications

BrandCaldera
ModelCaldera PW-2061 Ultra
Rated output550 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
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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-3605 Core 1000W 80 PLUS Platinum ATX 3.1 Power Supply1,944$179Compare
Vantrel PW-6672 Ti 850W 80 PLUS Gold ATX Power Supply1,306$79Compare
Novexa PW-7739 SE 550W 80 PLUS Gold ATX 3.1 Power Supply777$39Compare
Zephyra PW-4589 SE 550W 80 PLUS Bronze ATX 3.0 Power Supply781$39Compare
Zephyra PW-9199 Pro 750W 80 PLUS Gold ATX 3.1 Power Supply1,181$69Compare
Novexa PW-8694 Ultra 1000W 80 PLUS Gold ATX Power Supply2,058$189Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-2061 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/9983265 (accessed 2026-10-23).