The Seasonic SS-300M1U is a 300W 1U enterprise/industrial server power supply featuring an 80 PLUS Gold certification. Engineered for space-constrained high-density environments like 1U rackmount chassis and mini-ITX servers, this unit delivers up to 90% efficiency at a 50% system load.
Technical Specifications* Form Factor: 1U Server / Rackmount
* Total Output Power: 300 Watts continuous power
* Efficiency Rating: 80 PLUS Gold Certified (Up to 90% efficiency)
* Power Factor Correction: Active PFC (99% typical)
* Amperage Rails: +3.3V@10A, +5V@14A, +12V@25A (Single +12V Rail)
* Cooling: Single 40mm double ball-bearing fan with smart thermal control
* Dimensions: 7.5" x 3.2" x 1.6" (190mm x 81.5mm x 40.5mm)
Key Features* Advanced Topology: Uses a DC-to-DC converter design to improve system stability and cross-regulation performance. [2]
* Industrial Protections: Built-in safeguards including Over Voltage (OVP), Over Power (OPP), and Short Circuit Protection (SCP) across all outputs. [2]
* High Reliability: Features a Mean Time Between Failures (MTBF) rating of over 100,000 hours under full load at 25°C. [5]
* Connectivity: Equipped with a standard 24-pin main connector, Molex, SATA, and FDD connections suited for industrial motherboards and storage arrays.