Hardware Spec Index

Novexa PW-5143 Pro 550W 80 PLUS Gold SFX Power Supply

Power Supplies · Novexa · SKU PW5143-PRO · Released 2022 · Updated 2026-10-21

Key facts

Benchmark index961 (Power Supplies scale)
Category rank#9,792
Street price$39
Power550 W (rated)
Performance per dollar24.64
Released2022

Specifications

BrandNovexa
ModelNovexa PW-5143 Pro
Rated output550 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-pin1×
Form factorSFX-L
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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-8740 Pro 1000W 80 PLUS Gold ATX Power Supply2,039$159Compare
Vantrel PW-3384 Plus 850W 80 PLUS Bronze ATX 3.1 Power Supply1,302$59Compare
Caldera PW-1628 Pro 1300W 80 PLUS Titanium ATX Power Supply2,611$329Compare
Teralux PW-8740 Ti 650W 80 PLUS Gold ATX Power Supply1,076$49Compare
Caldera PW-3641 Max 1600W 80 PLUS Platinum ATX Power Supply2,699$329Compare
Novexa PW-6170 Edge 650W 80 PLUS Gold ATX 3.1 Power Supply1,055$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-5143 Pro 550W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/8551947 (accessed 2026-10-21).