Hardware Spec Index

Zephyra PW-5550 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW5550-ULTRA · Released 2024 · Updated 2026-10-19

Key facts

Benchmark index1,906 (Power Supplies scale)
Category rank#23,947
Street price$159
Power850 W (rated)
Performance per dollar11.99
Released2024

Specifications

BrandZephyra
ModelZephyra PW-5550 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
Fan120 mm fluid dynamic bearing, zero-RPM mode
Hold-up time≥ 17 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
Zephyra PW-1807 SE 550W 80 PLUS Gold ATX 3.0 Power Supply858$39Compare
Zephyra PW-5615 Core 1000W 80 PLUS Platinum ATX 3.1 Power Supply2,195$209Compare
Vantrel PW-8284 Ti 1000W 80 PLUS Gold ATX Power Supply1,918$169Compare
Teralux PW-8485 Plus 850W 80 PLUS Gold ATX 3.1 Power Supply1,655$139Compare
Teralux PW-5833 Pro 1000W 80 PLUS Gold ATX 3.0 Power Supply2,003$189Compare
Vantrel PW-8671 Core 1000W 80 PLUS Gold ATX 3.0 Power Supply1,754$139Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-5550 Ultra 850W 80 PLUS Gold ATX 3.1 Power Supply”, https://vextor7.com/item/588183 (accessed 2026-10-19).