Hardware Spec Index

Novexa PW-9978 Ultra 650W 80 PLUS Bronze SFX Power Supply

Power Supplies · Novexa · SKU PW9978-ULTRA · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index1,096 (Power Supplies scale)
Category rank#44,110
Street price$69
Power650 W (rated)
Performance per dollar15.88
Released2020

Specifications

BrandNovexa
ModelNovexa PW-9978 Ultra
Rated output650 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorSFX-L
ModularityNon-modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Zephyra PW-6009 Plus 650W 80 PLUS Bronze ATX 3.1 Power Supply1,076$59Compare
Caldera PW-6563 Plus 1000W 80 PLUS Platinum ATX 3.0 Power Supply1,871$159Compare
Caldera PW-1279 SE 1600W 80 PLUS Platinum ATX Power Supply2,980$399Compare
Vantrel PW-8169 Plus 1300W 80 PLUS Platinum ATX 3.1 Power Supply2,887$359Compare
Zephyra PW-6207 Prime 650W 80 PLUS Bronze ATX Power Supply1,174$69Compare
Vantrel PW-4216 XT 1600W 80 PLUS Platinum ATX Power Supply2,897$339Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-9978 Ultra 650W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/11969337 (accessed 2026-10-25).