Hardware Spec Index

Caldera PW-9774 Pro 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Caldera · SKU PW9774-PRO · Released 2021 · Updated 2026-10-24

Key facts

Benchmark index976 (Power Supplies scale)
Category rank#48,280
Street price$49
Power550 W (rated)
Performance per dollar19.92
Released2021

Specifications

BrandCaldera
ModelCaldera PW-9774 Pro
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
Fan140 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Zephyra PW-1513 Ti 1600W 80 PLUS Platinum ATX Power Supply2,773$289Compare
Vantrel PW-2570 XT 750W 80 PLUS Gold ATX Power Supply1,226$59Compare
Zephyra PW-5324 SE 550W 80 PLUS Bronze ATX 3.0 Power Supply722$39Compare
Zephyra PW-3129 SE 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,716$389Compare
Caldera PW-2851 SE 1300W 80 PLUS Platinum ATX Power Supply2,784$379Compare
Vantrel PW-4570 Ti 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,570$329Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-9774 Pro 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/20067123 (accessed 2026-10-24).