Hardware Spec Index

Caldera PW-7091 XT 550W 80 PLUS Gold ATX Power Supply

Power Supplies · Caldera · SKU PW7091-XT · Released 2020 · Updated 2026-10-23

Key facts

Benchmark index1,084 (Power Supplies scale)
Category rank#17,699
Street price$59
Power550 W (rated)
Performance per dollar18.37
Released2020

Specifications

BrandCaldera
ModelCaldera PW-7091 XT
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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-8511 XT 1300W 80 PLUS Gold ATX 3.0 Power Supply2,444$279Compare
Novexa PW-8320 Ti 550W 80 PLUS Bronze SFX Power Supply749$39Compare
Zephyra PW-6106 SE 750W 80 PLUS Bronze ATX 3.0 Power Supply1,319$89Compare
Teralux PW-4811 SE 1000W 80 PLUS Platinum ATX Power Supply2,382$229Compare
Zephyra PW-7673 Ultra 1000W 80 PLUS Gold ATX 3.1 Power Supply2,169$209Compare
Vantrel PW-4906 Max 850W 80 PLUS Gold ATX 3.0 Power Supply1,668$109Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Caldera PW-7091 XT 550W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/4048919 (accessed 2026-10-23).