Hardware Spec Index

Teralux PW-1891 XT 550W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Teralux · SKU PW1891-XT · Released 2026 · Updated 2026-10-20

Key facts

Benchmark index833 (Power Supplies scale)
Category rank#36,074
Street price$39
Power550 W (rated)
Performance per dollar21.36
Released2026

Specifications

BrandTeralux
ModelTeralux PW-1891 XT
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 factorATX
ModularityFully modular
Fan135 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-5838 XT 650W 80 PLUS Bronze ATX 3.1 Power Supply940$39Compare
Caldera PW-6422 Max 1600W 80 PLUS Titanium ATX Power Supply2,693$319Compare
Caldera PW-3248 Plus 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,835$389Compare
Zephyra PW-2772 Max 1200W 80 PLUS Gold ATX 3.1 Power Supply1,969$199Compare
Teralux PW-3273 SE 1000W 80 PLUS Gold ATX 3.0 Power Supply2,224$199Compare
Teralux PW-4108 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply1,769$119Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Teralux PW-1891 XT 550W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/8569879 (accessed 2026-10-20).