Hardware Spec Index

Zephyra PW-9451 XT 550W 80 PLUS Gold ATX Power Supply

Power Supplies · Zephyra · SKU PW9451-XT · Released 2019 · Updated 2026-10-26

Key facts

Benchmark index784 (Power Supplies scale)
Category rank#16,072
Street price$39
Power550 W (rated)
Performance per dollar20.10
Released2019

Specifications

BrandZephyra
ModelZephyra PW-9451 XT
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
Warranty7 years

Related guides

80 PLUS Efficiency Ratings ExplainedATX 3.1 Power Supplies and the 12V-2x6 Connector

Similar Power Supplies

ModelBenchmarkPriceCompare
Novexa PW-8940 Edge 850W 80 PLUS Bronze ATX 3.0 Power Supply1,450$99Compare
Vantrel PW-3126 Core 1600W 80 PLUS Titanium ATX Power Supply2,980$389Compare
Teralux PW-8046 Edge 1000W 80 PLUS Gold ATX 3.0 Power Supply1,904$149Compare
Vantrel PW-7618 Prime 650W 80 PLUS Bronze ATX 3.1 Power Supply1,236$59Compare
Vantrel PW-5845 SE 850W 80 PLUS Bronze ATX 3.0 Power Supply1,450$89Compare
Vantrel PW-3978 Core 1600W 80 PLUS Titanium ATX Power Supply2,890$399Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9451 XT 550W 80 PLUS Gold ATX Power Supply”, https://vextor7.com/item/81314979 (accessed 2026-10-26).