Hardware Spec Index

Novexa PW-4551 Ultra 1600W 80 PLUS Platinum ATX Power Supply

Power Supplies · Novexa · SKU PW4551-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index2,980 (Power Supplies scale)
Category rank#6,569
Street price$389
Power1600 W (rated)
Performance per dollar7.66
Released2020

Specifications

BrandNovexa
ModelNovexa PW-4551 Ultra
Rated output1,600 W continuous
Efficiency80 PLUS Platinum (92% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin6×
Form factorATX
ModularityFully modular
Fan120 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
Teralux PW-8946 Ti 1000W 80 PLUS Gold ATX 3.0 Power Supply1,783$159Compare
Vantrel PW-1060 SE 850W 80 PLUS Gold ATX 3.1 Power Supply1,429$99Compare
Zephyra PW-7495 Plus 550W 80 PLUS Gold ATX 3.0 Power Supply718$39Compare
Novexa PW-9368 Pro 1000W 80 PLUS Gold ATX Power Supply2,240$219Compare
Vantrel PW-8817 Ti 850W 80 PLUS Gold SFX Power Supply2,043$179Compare
Caldera PW-3188 SE 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,725$309Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-4551 Ultra 1600W 80 PLUS Platinum ATX Power Supply”, https://vextor7.com/item/31494759 (accessed 2026-10-25).