Hardware Spec Index

Zephyra PW-1946 Pro 550W 80 PLUS Gold ATX Power Supply

Power Supplies · Zephyra · SKU PW1946-PRO · Released 2021 · Updated 2026-10-20

Key facts

Benchmark index738 (Power Supplies scale)
Category rank#19,717
Street price$39
Power550 W (rated)
Performance per dollar18.92
Released2021

Specifications

BrandZephyra
ModelZephyra PW-1946 Pro
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 12V 2.53
GPU powerNone
PCIe 8-pin2×
Form factorATX
ModularityFully 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
Zephyra PW-2423 XT 750W 80 PLUS Gold SFX Power Supply1,505$99Compare
Novexa PW-3015 Ultra 750W 80 PLUS Bronze SFX Power Supply1,160$59Compare
Zephyra PW-8642 Plus 750W 80 PLUS Gold ATX 3.1 Power Supply1,391$89Compare
Teralux PW-8935 Pro 850W 80 PLUS Gold SFX Power Supply1,820$179Compare
Teralux PW-9284 Prime 650W 80 PLUS Bronze SFX Power Supply1,201$69Compare
Vantrel PW-4260 Core 850W 80 PLUS Gold ATX 3.1 Power Supply1,707$129Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-1946 Pro 550W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/390062 (accessed 2026-10-20).