Hardware Spec Index

Novexa PW-3861 Ultra 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Novexa · SKU PW3861-ULTRA · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index1,764 (Power Supplies scale)
Category rank#605
Street price$159
Power850 W (rated)
Performance per dollar11.09
Released2021

Specifications

BrandNovexa
ModelNovexa PW-3861 Ultra
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
Warranty10 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Zephyra PW-5329 SE 1000W 80 PLUS Gold ATX 3.1 Power Supply1,904$149Compare
Zephyra PW-4655 Max 1200W 80 PLUS Gold ATX 3.0 Power Supply2,229$239Compare
Novexa PW-3184 Pro 550W 80 PLUS Gold ATX Power Supply888$49Compare
Teralux PW-9159 Max 750W 80 PLUS Bronze SFX Power Supply1,243$69Compare
Zephyra PW-3955 XT 550W 80 PLUS Bronze ATX Power Supply960$39Compare
Zephyra PW-8042 Pro 1000W 80 PLUS Gold SFX Power Supply2,149$199Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-3861 Ultra 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/51675885 (accessed 2026-10-20).