Hardware Spec Index

Teralux PW-2891 Core 550W 80 PLUS Gold SFX Power Supply

Power Supplies · Teralux · SKU PW2891-CORE · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index936 (Power Supplies scale)
Category rank#1,626
Street price$39
Power550 W (rated)
Performance per dollar24.00
Released2021

Specifications

BrandTeralux
ModelTeralux PW-2891 Core
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Vantrel PW-7255 Plus 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,384$259Compare
Novexa PW-6963 XT 1000W 80 PLUS Gold ATX 3.1 Power Supply1,726$129Compare
Vantrel PW-4599 Edge 850W 80 PLUS Gold ATX 3.0 Power Supply1,855$129Compare
Caldera PW-3664 Max 750W 80 PLUS Bronze ATX Power Supply1,106$59Compare
Teralux PW-8564 Ultra 850W 80 PLUS Bronze ATX 3.1 Power Supply1,177$69Compare
Vantrel PW-2722 SE 1000W 80 PLUS Platinum ATX 3.0 Power Supply2,364$239Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Teralux PW-2891 Core 550W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/18166263 (accessed 2026-10-20).