Hardware Spec Index

Zephyra PW-3894 Pro 550W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW3894-PRO · Released 2024 · Updated 2026-10-24

Key facts

Benchmark index720 (Power Supplies scale)
Category rank#17,421
Street price$39
Power550 W (rated)
Performance per dollar18.46
Released2024

Specifications

BrandZephyra
ModelZephyra PW-3894 Pro
Rated output550 W continuous
Efficiency80 PLUS Gold (90% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (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
Novexa PW-2420 Prime 750W 80 PLUS Gold SFX Power Supply1,307$69Compare
Zephyra PW-3840 Pro 850W 80 PLUS Gold ATX 3.0 Power Supply1,343$79Compare
Zephyra PW-7592 Edge 1200W 80 PLUS Gold ATX 3.1 Power Supply2,548$269Compare
Caldera PW-7481 Pro 750W 80 PLUS Bronze ATX 3.1 Power Supply1,084$49Compare
Teralux PW-4686 Edge 1000W 80 PLUS Gold ATX 3.1 Power Supply1,811$149Compare
Novexa PW-7910 Ti 650W 80 PLUS Gold SFX Power Supply1,263$79Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-3894 Pro 550W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/7267669 (accessed 2026-10-24).