Hardware Spec Index

Caldera PW-8258 Edge 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Caldera · SKU PW8258-EDGE · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index824 (Power Supplies scale)
Category rank#47,465
Street price$39
Power550 W (rated)
Performance per dollar21.13
Released2026

Specifications

BrandCaldera
ModelCaldera PW-8258 Edge
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 factorSFX-L
ModularitySemi-modular
Fan120 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
Teralux PW-4484 Ultra 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,747$309Compare
Teralux PW-8441 Ti 1000W 80 PLUS Gold ATX Power Supply2,400$229Compare
Caldera PW-9474 Edge 850W 80 PLUS Platinum ATX Power Supply1,892$159Compare
Caldera PW-4172 Edge 750W 80 PLUS Bronze ATX 3.0 Power Supply1,224$59Compare
Zephyra PW-7392 Core 1200W 80 PLUS Platinum ATX 3.0 Power Supply2,058$199Compare
Vantrel PW-6416 XT 1200W 80 PLUS Titanium ATX Power Supply2,225$259Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-8258 Edge 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/236478 (accessed 2026-10-20).