Hardware Spec Index

Zephyra PW-3983 Ultra 550W 80 PLUS Bronze ATX Power Supply

Power Supplies · Zephyra · SKU PW3983-ULTRA · Released 2020 · Updated 2026-10-22

Key facts

Benchmark index925 (Power Supplies scale)
Category rank#34,625
Street price$39
Power550 W (rated)
Performance per dollar23.72
Released2020

Specifications

BrandZephyra
ModelZephyra PW-3983 Ultra
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularitySemi-modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 16 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
Vantrel PW-5631 Prime 1300W 80 PLUS Platinum ATX Power Supply2,405$299Compare
Novexa PW-2727 Max 750W 80 PLUS Gold ATX 3.0 Power Supply1,613$119Compare
Caldera PW-3768 Ti 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,319$209Compare
Novexa PW-3217 Core 1000W 80 PLUS Platinum SFX Power Supply2,063$229Compare
Novexa PW-7741 Max 1000W 80 PLUS Gold ATX 3.1 Power Supply2,586$299Compare
Zephyra PW-7683 Ultra 1300W 80 PLUS Gold ATX Power Supply2,434$249Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-3983 Ultra 550W 80 PLUS Bronze ATX Power Supply”, https://vextor7.com/item/91310264 (accessed 2026-10-22).