Hardware Spec Index

Caldera PW-8424 XT 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Caldera · SKU PW8424-XT · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index809 (Power Supplies scale)
Category rank#47,320
Street price$39
Power550 W (rated)
Performance per dollar20.74
Released2026

Specifications

BrandCaldera
ModelCaldera PW-8424 XT
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
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
Novexa PW-4346 XT 1300W 80 PLUS Platinum ATX 3.0 Power Supply2,507$289Compare
Novexa PW-8791 Ultra 1000W 80 PLUS Gold ATX 3.0 Power Supply2,403$319Compare
Caldera PW-7897 Ultra 1200W 80 PLUS Gold ATX Power Supply2,266$219Compare
Vantrel PW-8399 Core 650W 80 PLUS Gold ATX 3.0 Power Supply809$39Compare
Vantrel PW-8548 Prime 550W 80 PLUS Gold ATX Power Supply1,198$59Compare
Novexa PW-3648 XT 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,555$329Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-8424 XT 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/5332071 (accessed 2026-10-20).