Hardware Spec Index

Zephyra PW-7778 Ti 550W 80 PLUS Bronze ATX 3.1 Power Supply

Power Supplies · Zephyra · SKU PW7778-TI · Released 2025 · Updated 2026-10-20

Key facts

Benchmark index1,068 (Power Supplies scale)
Category rank#4,251
Street price$49
Power550 W (rated)
Performance per dollar21.80
Released2025

Specifications

BrandZephyra
ModelZephyra PW-7778 Ti
Rated output550 W continuous
Efficiency80 PLUS Bronze (85% at 50% load, 115 V)
StandardATX 3.1 / PCIe CEM 5.1
GPU power1× 12V-2x6 (600 W)
PCIe 8-pin1×
Form factorATX
ModularitySemi-modular
Fan135 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-5249 SE 550W 80 PLUS Bronze ATX 3.1 Power Supply758$39Compare
Vantrel PW-8425 Plus 1000W 80 PLUS Gold ATX 3.1 Power Supply2,438$259Compare
Zephyra PW-9275 Edge 1000W 80 PLUS Titanium SFX Power Supply2,350$229Compare
Novexa PW-4017 Prime 1000W 80 PLUS Gold ATX 3.1 Power Supply1,912$189Compare
Caldera PW-1132 Max 750W 80 PLUS Gold ATX 3.0 Power Supply1,714$109Compare
Teralux PW-7374 Ti 1200W 80 PLUS Platinum ATX 3.1 Power Supply2,574$289Compare

All Power Supplies · JSON

Cite this page: Hardware Spec Index, “Zephyra PW-7778 Ti 550W 80 PLUS Bronze ATX 3.1 Power Supply”, https://vextor7.com/item/4397146 (accessed 2026-10-20).