Hardware Spec Index

Novexa PW-9821 Prime 850W 80 PLUS Gold ATX Power Supply

Power Supplies · Novexa · SKU PW9821-PRIME · Released 2020 · Updated 2026-10-21

Key facts

Benchmark index1,633 (Power Supplies scale)
Category rank#27,869
Street price$119
Power850 W (rated)
Performance per dollar13.72
Released2020

Specifications

BrandNovexa
ModelNovexa PW-9821 Prime
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
Warranty5 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-5000 SE 650W 80 PLUS Bronze ATX 3.0 Power Supply727$39Compare
Zephyra PW-8886 XT 550W 80 PLUS Gold ATX Power Supply875$39Compare
Caldera PW-6898 Edge 550W 80 PLUS Gold ATX Power Supply819$39Compare
Zephyra PW-7643 Edge 1300W 80 PLUS Platinum ATX 3.0 Power Supply2,753$329Compare
Zephyra PW-2932 Plus 850W 80 PLUS Gold ATX Power Supply1,497$89Compare
Caldera PW-6423 XT 1200W 80 PLUS Gold ATX Power Supply2,353$269Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-9821 Prime 850W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/14976019 (accessed 2026-10-21).