Power Supply Seasonic Prime TX-700 Fanless Fully Modular SSR-700TL 80 Plus Titanium 700W

Seasonic Prime TX-700 Fanless 700W Titanium Power Supply

The Seasonic Prime TX-700 Fanless is a 700W unit that runs without a cooling fan, intended for especially quiet desktop builds. It combines fully modular cables with Titanium-grade efficiency and is aimed at systems where silent operation is a priority.

Power & efficiency

The unit delivers 700W at Titanium-grade efficiency, the highest rung on the efficiency scale, which supports very efficient power conversion and reduced wasted energy and heat. The output suits quiet, workstation-style desktop systems that need steady power delivery over time.

Cables & connectors

The design is fully modular and lets you connect only the cables the build needs, keeping the case interior cleaner and tidier. Neat cable routing also supports better airflow around the components, which matters especially in a fanless unit. A cable-free connection design reduces internal wiring between the rear panel and the PCB.

Reliability & cooling

Cooling is entirely passive: the fanless design removes fan noise from the supply, suiting systems where silence is critical. For reliability, the PRIME-series Micro Tolerance Load Regulation helps keep voltage delivery stable even under load changes, which supports component stability over time.

• Output: 700W
• Efficiency: 80 PLUS Titanium
• Cooling: passive · fanless
• Modularity: full
• Reliability: Micro Tolerance Load Regulation
• Wiring: cable-free connection design
• Use: quiet, workstation-style desktop systems