Hardware Spec Index

Zephyra PW-9919 Pro 550W 80 PLUS Gold ATX Power Supply

Power Supplies · Zephyra · SKU PW9919-PRO · Released 2020 · Updated 2026-10-25

Key facts

Benchmark index1,145 (Power Supplies scale)
Category rank#18,319
Street price$59
Power550 W (rated)
Performance per dollar19.41
Released2020

Specifications

BrandZephyra
ModelZephyra PW-9919 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
Fan135 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
Teralux PW-7664 Max 850W 80 PLUS Gold SFX Power Supply2,109$199Compare
Novexa PW-9394 SE 850W 80 PLUS Gold ATX 3.1 Power Supply1,904$149Compare
Zephyra PW-1778 Prime 550W 80 PLUS Bronze ATX 3.1 Power Supply952$49Compare
Caldera PW-4906 Core 1000W 80 PLUS Gold ATX 3.1 Power Supply1,683$129Compare
Novexa PW-9096 Edge 1000W 80 PLUS Gold ATX Power Supply2,202$199Compare
Teralux PW-5342 Edge 1000W 80 PLUS Gold ATX 3.0 Power Supply2,415$229Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9919 Pro 550W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/41496927 (accessed 2026-10-25).