Hardware Spec Index

Novexa PW-4389 XT 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Novexa · SKU PW4389-XT · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index1,609 (Power Supplies scale)
Category rank#7,648
Street price$129
Power850 W (rated)
Performance per dollar12.47
Released2020

Specifications

BrandNovexa
ModelNovexa PW-4389 XT
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin3×
Form factorATX
ModularityFully modular
Fan135 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
Novexa PW-4880 SE 850W 80 PLUS Bronze ATX Power Supply1,167$69Compare
Zephyra PW-3129 Ultra 1200W 80 PLUS Gold ATX Power Supply2,177$239Compare
Zephyra PW-5536 Pro 550W 80 PLUS Gold ATX 3.1 Power Supply1,065$49Compare
Caldera PW-3727 SE 1200W 80 PLUS Titanium ATX Power Supply2,470$329Compare
Novexa PW-2410 Prime 1000W 80 PLUS Platinum ATX Power Supply2,349$229Compare
Teralux PW-8281 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply1,186$69Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-4389 XT 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/3250476 (accessed 2026-10-22).