Hardware Spec Index

Novexa PW-8546 Ultra 850W 80 PLUS Gold SFX Power Supply

Power Supplies · Novexa · SKU PW8546-ULTRA · Released 2024 · Updated 2026-10-21

Key facts

Benchmark index1,668 (Power Supplies scale)
Category rank#12,242
Street price$139
Power850 W (rated)
Performance per dollar12.00
Released2024

Specifications

BrandNovexa
ModelNovexa PW-8546 Ultra
Rated output850 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-pin2×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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-3194 Max 1200W 80 PLUS Gold ATX 3.0 Power Supply2,272$229Compare
Novexa PW-6181 XT 1200W 80 PLUS Platinum ATX Power Supply2,198$199Compare
Zephyra PW-8863 SE 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,834$359Compare
Novexa PW-2689 XT 1200W 80 PLUS Titanium ATX 3.0 Power Supply2,453$239Compare
Teralux PW-7607 SE 1600W 80 PLUS Platinum ATX 3.1 Power Supply2,796$339Compare
Zephyra PW-1078 Edge 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,661$299Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-8546 Ultra 850W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/3699482 (accessed 2026-10-21).