Hardware Spec Index

Teralux PW-6439 Ultra 850W 80 PLUS Platinum SFX Power Supply

Power Supplies · Teralux · SKU PW6439-ULTRA · Released 2019 · Updated 2026-10-22

Key facts

Benchmark index1,985 (Power Supplies scale)
Category rank#23,651
Street price$169
Power850 W (rated)
Performance per dollar11.75
Released2019

Specifications

BrandTeralux
ModelTeralux PW-6439 Ultra
Rated output850 W continuous
Efficiency80 PLUS Platinum (92% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty10 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Zephyra PW-8692 Pro 850W 80 PLUS Gold ATX Power Supply1,827$139Compare
Caldera PW-4334 Core 650W 80 PLUS Bronze ATX Power Supply1,000$49Compare
Caldera PW-4351 Ti 1300W 80 PLUS Platinum ATX Power Supply2,618$349Compare
Vantrel PW-6458 XT 1000W 80 PLUS Titanium ATX 3.0 Power Supply2,169$229Compare
Teralux PW-3084 XT 1600W 80 PLUS Titanium ATX 3.0 Power Supply2,980$379Compare
Zephyra PW-9870 Ti 750W 80 PLUS Gold ATX 3.1 Power Supply1,501$99Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Teralux PW-6439 Ultra 850W 80 PLUS Platinum SFX Power Supply”, https://vextor7.com/item/6010725 (accessed 2026-10-22).