Hardware Spec Index

Novexa PW-1242 XT 550W 80 PLUS Bronze ATX 3.0 Power Supply

Power Supplies · Novexa · SKU PW1242-XT · Released 2023 · Updated 2026-10-22

Key facts

Benchmark index747 (Power Supplies scale)
Category rank#10,554
Street price$39
Power550 W (rated)
Performance per dollar19.15
Released2023

Specifications

BrandNovexa
ModelNovexa PW-1242 XT
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin1×
Form factorATX
ModularityNon-modular
Fan120 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
Vantrel PW-3304 Max 1000W 80 PLUS Platinum SFX Power Supply2,266$229Compare
Teralux PW-8312 XT 550W 80 PLUS Gold ATX 3.1 Power Supply780$39Compare
Vantrel PW-8706 Ti 850W 80 PLUS Gold ATX Power Supply1,980$159Compare
Novexa PW-8931 Edge 750W 80 PLUS Bronze ATX 3.1 Power Supply1,196$69Compare
Novexa PW-3969 Pro 650W 80 PLUS Gold ATX 3.0 Power Supply1,037$49Compare
Zephyra PW-1477 Max 850W 80 PLUS Gold ATX Power Supply1,699$119Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-1242 XT 550W 80 PLUS Bronze ATX 3.0 Power Supply”, https://vextor7.com/item/11384151 (accessed 2026-10-22).