Hardware Spec Index

Novexa PW-8851 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Novexa · SKU PW8851-ULTRA · Released 2023 · Updated 2026-10-21

Key facts

Benchmark index1,378 (Power Supplies scale)
Category rank#10,098
Street price$89
Power850 W (rated)
Performance per dollar15.48
Released2023

Specifications

BrandNovexa
ModelNovexa PW-8851 Ultra
Rated output850 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin2×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Caldera PW-4895 Pro 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,400$209Compare
Novexa PW-8368 SE 650W 80 PLUS Bronze ATX Power Supply837$49Compare
Novexa PW-7654 Max 750W 80 PLUS Gold ATX Power Supply1,094$49Compare
Vantrel PW-2589 Max 1200W 80 PLUS Gold ATX Power Supply2,059$179Compare
Novexa PW-2322 Ti 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,549$329Compare
Caldera PW-5136 Prime 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,363$199Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-8851 Ultra 850W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/5482728 (accessed 2026-10-21).