Hardware Spec Index

Caldera PW-7973 Max 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW7973-MAX · Released 2024 · Updated 2026-10-22

Key facts

Benchmark index771 (Power Supplies scale)
Category rank#12,507
Street price$39
Power550 W (rated)
Performance per dollar19.77
Released2024

Specifications

BrandCaldera
ModelCaldera PW-7973 Max
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
ModularityNon-modular
Fan135 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
Zephyra PW-9063 SE 1000W 80 PLUS Gold ATX Power Supply1,779$149Compare
Teralux PW-8325 Prime 1000W 80 PLUS Gold ATX 3.1 Power Supply2,271$219Compare
Caldera PW-6910 Core 550W 80 PLUS Bronze ATX 3.0 Power Supply1,028$49Compare
Teralux PW-6403 Max 750W 80 PLUS Gold ATX 3.1 Power Supply1,305$69Compare
Vantrel PW-1902 Edge 1000W 80 PLUS Gold ATX 3.0 Power Supply2,310$249Compare
Caldera PW-5139 SE 650W 80 PLUS Gold SFX Power Supply1,050$59Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-7973 Max 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/30459256 (accessed 2026-10-22).