Hardware Spec Index

Caldera PW-6126 Ultra 550W 80 PLUS Gold SFX Power Supply

Power Supplies · Caldera · SKU PW6126-ULTRA · Released 2026 · Updated 2026-10-22

Key facts

Benchmark index917 (Power Supplies scale)
Category rank#10,955
Street price$39
Power550 W (rated)
Performance per dollar23.51
Released2026

Specifications

BrandCaldera
ModelCaldera PW-6126 Ultra
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
Vantrel PW-8194 SE 1000W 80 PLUS Platinum ATX 3.0 Power Supply2,105$169Compare
Zephyra PW-1483 Core 1000W 80 PLUS Titanium SFX Power Supply2,286$239Compare
Zephyra PW-8481 XT 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,397$229Compare
Zephyra PW-5642 XT 1600W 80 PLUS Titanium ATX 3.1 Power Supply2,675$309Compare
Caldera PW-1598 Max 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,573$359Compare
Vantrel PW-3762 Plus 550W 80 PLUS Gold ATX 3.1 Power Supply948$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-6126 Ultra 550W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/6663540 (accessed 2026-10-22).