Hardware Spec Index

Novexa PW-4948 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Novexa · SKU PW4948-ULTRA · Released 2026 · Updated 2026-10-25

Key facts

Benchmark index1,070 (Power Supplies scale)
Category rank#30,953
Street price$49
Power550 W (rated)
Performance per dollar21.84
Released2026

Specifications

BrandNovexa
ModelNovexa PW-4948 Ultra
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorATX
ModularitySemi-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
Zephyra PW-4507 Max 850W 80 PLUS Gold ATX 3.1 Power Supply2,156$169Compare
Vantrel PW-7880 Plus 850W 80 PLUS Gold ATX Power Supply1,782$149Compare
Teralux PW-7595 Edge 650W 80 PLUS Bronze ATX 3.0 Power Supply766$39Compare
Novexa PW-4396 XT 1000W 80 PLUS Gold ATX 3.1 Power Supply1,873$149Compare
Zephyra PW-3075 XT 1300W 80 PLUS Gold ATX Power Supply2,550$239Compare
Caldera PW-7365 Core 1000W 80 PLUS Gold ATX 3.1 Power Supply2,110$219Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-4948 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/21755625 (accessed 2026-10-25).