Hardware Spec Index

Zephyra PW-9291 XT 550W 80 PLUS Gold SFX Power Supply

Power Supplies · Zephyra · SKU PW9291-XT · Released 2025 · Updated 2026-10-19

Key facts

Benchmark index980 (Power Supplies scale)
Category rank#10,782
Street price$39
Power550 W (rated)
Performance per dollar25.13
Released2025

Specifications

BrandZephyra
ModelZephyra PW-9291 XT
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 factorSFX-L
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-6317 SE 1200W 80 PLUS Platinum ATX Power Supply2,740$309Compare
Novexa PW-2059 Pro 1000W 80 PLUS Gold ATX 3.1 Power Supply2,231$249Compare
Zephyra PW-3375 Ti 650W 80 PLUS Gold ATX Power Supply1,283$69Compare
Teralux PW-1999 Plus 550W 80 PLUS Gold ATX Power Supply760$39Compare
Caldera PW-6201 Edge 1000W 80 PLUS Gold ATX 3.0 Power Supply2,102$229Compare
Teralux PW-7693 Prime 1300W 80 PLUS Titanium ATX 3.0 Power Supply2,969$399Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9291 XT 550W 80 PLUS Gold SFX Power Supply”, https://vextor7.com/item/271986 (accessed 2026-10-19).