Hardware Spec Index

Zephyra PW-3301 Pro 550W 80 PLUS Gold ATX 3.0 Power Supply

Power Supplies · Zephyra · SKU PW3301-PRO · Released 2022 · Updated 2026-10-20

Key facts

Benchmark index854 (Power Supplies scale)
Category rank#39,207
Street price$49
Power550 W (rated)
Performance per dollar17.43
Released2022

Specifications

BrandZephyra
ModelZephyra PW-3301 Pro
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.0 / PCIe CEM 5.0
GPU power1× 12VHPWR (600 W)
PCIe 8-pin1×
Form factorATX
ModularityFully modular
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Teralux PW-3071 Plus 850W 80 PLUS Gold SFX Power Supply1,382$79Compare
Novexa PW-6104 Prime 1000W 80 PLUS Platinum SFX Power Supply1,921$159Compare
Caldera PW-2203 Max 850W 80 PLUS Gold ATX 3.1 Power Supply1,805$119Compare
Caldera PW-5334 Edge 850W 80 PLUS Gold ATX 3.1 Power Supply1,596$119Compare
Novexa PW-4579 Max 1000W 80 PLUS Titanium ATX 3.0 Power Supply2,346$269Compare
Vantrel PW-8657 Plus 650W 80 PLUS Bronze ATX Power Supply806$39Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-3301 Pro 550W 80 PLUS Gold ATX 3.0 Power Supply”, https://vextor7.com/item/20072547 (accessed 2026-10-20).