Hardware Spec Index

Novexa PW-9955 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Novexa · SKU PW9955-ULTRA · Released 2026 · Updated 2026-10-19

Key facts

Benchmark index843 (Power Supplies scale)
Category rank#44,448
Street price$49
Power550 W (rated)
Performance per dollar17.20
Released2026

Specifications

BrandNovexa
ModelNovexa PW-9955 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
ModularityNon-modular
Fan135 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
Vantrel PW-1704 Core 750W 80 PLUS Bronze ATX 3.1 Power Supply1,465$79Compare
Zephyra PW-1391 XT 550W 80 PLUS Gold ATX 3.0 Power Supply1,111$59Compare
Zephyra PW-6179 Edge 850W 80 PLUS Gold SFX Power Supply1,619$109Compare
Teralux PW-7741 SE 1200W 80 PLUS Gold ATX Power Supply2,518$329Compare
Caldera PW-7652 Core 850W 80 PLUS Platinum ATX 3.1 Power Supply1,880$159Compare
Zephyra PW-8325 Pro 750W 80 PLUS Gold ATX 3.1 Power Supply1,511$89Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-9955 Ultra 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/83993 (accessed 2026-10-19).