Hardware Spec Index

Caldera PW-3331 Edge 550W 80 PLUS Gold SFX Power Supply

Power Supplies · Caldera · SKU PW3331-EDGE · Released 2025 · Updated 2026-10-22

Key facts

Benchmark index908 (Power Supplies scale)
Category rank#39,896
Street price$39
Power550 W (rated)
Performance per dollar23.28
Released2025

Specifications

BrandCaldera
ModelCaldera PW-3331 Edge
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorSFX-L
ModularityFully modular
Fan120 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
Teralux PW-7360 SE 850W 80 PLUS Gold ATX 3.1 Power Supply1,864$149Compare
Caldera PW-5283 Max 850W 80 PLUS Bronze ATX 3.1 Power Supply1,446$99Compare
Vantrel PW-4270 Ultra 550W 80 PLUS Bronze ATX Power Supply832$39Compare
Teralux PW-4545 Plus 1600W 80 PLUS Platinum ATX Power Supply2,739$319Compare
Zephyra PW-5455 Pro 1300W 80 PLUS Platinum ATX Power Supply2,980$399Compare
Vantrel PW-7241 Plus 1300W 80 PLUS Platinum ATX 3.0 Power Supply2,615$289Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-3331 Edge 550W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/4132584 (accessed 2026-10-22).