Hardware Spec Index

Novexa PW-4977 Ultra 750W 80 PLUS Bronze SFX Power Supply

Power Supplies · Novexa · SKU PW4977-ULTRA · Released 2023 · Updated 2026-10-20

Key facts

Benchmark index967 (Power Supplies scale)
Category rank#42,592
Street price$39
Power750 W (rated)
Performance per dollar24.79
Released2023

Specifications

BrandNovexa
ModelNovexa PW-4977 Ultra
Rated output750 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-pin2×
Form factorSFX-L
ModularitySemi-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

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Cite this page: Hardware Spec Index, “Novexa PW-4977 Ultra 750W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/4963142 (accessed 2026-10-20).