Hardware Spec Index

Novexa PW-3891 Max 650W 80 PLUS Gold ATX Power Supply

Power Supplies · Novexa · SKU PW3891-MAX · Released 2021 · Updated 2026-10-26

Key facts

Benchmark index1,206 (Power Supplies scale)
Category rank#32,111
Street price$69
Power650 W (rated)
Performance per dollar17.48
Released2021

Specifications

BrandNovexa
ModelNovexa PW-3891 Max
Rated output650 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
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
Teralux PW-7700 Ultra 1200W 80 PLUS Platinum ATX 3.0 Power Supply2,436$239Compare
Teralux PW-5064 Max 1300W 80 PLUS Titanium ATX Power Supply2,470$329Compare
Zephyra PW-6319 Core 1000W 80 PLUS Titanium ATX Power Supply2,374$269Compare
Caldera PW-1677 XT 850W 80 PLUS Gold ATX 3.0 Power Supply1,880$179Compare
Teralux PW-5639 Prime 1300W 80 PLUS Gold ATX 3.0 Power Supply2,373$269Compare
Caldera PW-3224 Max 1000W 80 PLUS Gold ATX 3.1 Power Supply2,188$239Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-3891 Max 650W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/31585905 (accessed 2026-10-26).