Hardware Spec Index

Novexa PW-3645 Prime 550W 80 PLUS Bronze SFX Power Supply

Power Supplies · Novexa · SKU PW3645-PRIME · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index1,002 (Power Supplies scale)
Category rank#40,473
Street price$49
Power550 W (rated)
Performance per dollar20.45
Released2020

Specifications

BrandNovexa
ModelNovexa PW-3645 Prime
Rated output550 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
Caldera PW-2017 Edge 650W 80 PLUS Gold ATX Power Supply1,070$59Compare
Caldera PW-3658 Prime 1000W 80 PLUS Gold ATX Power Supply2,112$169Compare
Caldera PW-6476 Prime 1200W 80 PLUS Platinum ATX Power Supply2,585$269Compare
Novexa PW-3494 XT 850W 80 PLUS Gold SFX Power Supply1,643$129Compare
Vantrel PW-4733 XT 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,318$269Compare
Zephyra PW-3018 Max 750W 80 PLUS Bronze ATX 3.0 Power Supply1,040$49Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Novexa PW-3645 Prime 550W 80 PLUS Bronze SFX Power Supply”, https://vextor7.com/item/4828264 (accessed 2026-10-22).