Hardware Spec Index

Zephyra PW-9544 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW9544-ULTRA · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index2,054 (Power Supplies scale)
Category rank#48,617
Street price$169
Power850 W (rated)
Performance per dollar12.15
Released2024

Specifications

BrandZephyra
ModelZephyra PW-9544 Ultra
Rated output850 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-pin2×
Form factorATX
ModularityFully modular
Fan135 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 ms
ProtectionsOCP, OVP, UVP, OPP, OTP, SCP
Warranty10 years

Related guides

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

Similar Power Supplies

ModelBenchmarkPriceCompare
Caldera PW-2406 Edge 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,980$389Compare
Caldera PW-6491 Prime 1000W 80 PLUS Platinum SFX Power Supply2,161$199Compare
Novexa PW-8465 Edge 1300W 80 PLUS Titanium ATX 3.1 Power Supply2,231$279Compare
Caldera PW-3179 XT 850W 80 PLUS Gold ATX 3.1 Power Supply1,490$99Compare
Vantrel PW-3433 SE 850W 80 PLUS Gold ATX 3.0 Power Supply1,350$99Compare
Teralux PW-6716 Pro 1200W 80 PLUS Titanium ATX 3.1 Power Supply2,679$319Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-9544 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/85647409 (accessed 2026-10-19).