Seasonic Focus Gold 550 power supply unit 550 W ATX

The FOCUS Gold power supplies are the ideal choice for people who do not want to break the bank, and yet seek solid power supplies with great reliability and efficiency. The semi-modular cabling design provides the most basic connections while allowing flexibility on the peripherals. The high-quality 120 mm Fluid Dynamic Bearing (FDB) fans are very quiet and proven to be very stable over the long run. The 120 mm FDB fan inside is regulated by the Seasonic S2FC fan control, which optimizes the fan speed according to the needs of the system. The highly efficient 80 PLUS® Gold certification guarantees greater than 87 %, 90 %, and 87 % efficiency at 20 %, 50 %, and 100 % operating loads, respectively. The clear advantage of buying a power supply with 80 PLUS® Gold rating is the fact that the less energy gets wasted during power conversion, the lower the operating costs will be for the user. S2FC - SMART AND SILENT FAN CONTROL

The intelligent thermal circuit feature is designed to find the optimal balance between the necessity to cool the components and the need to run the power supply in the most silent manner possible. FLUID DYNAMIC FAN BEARING

High-performance Fluid Dynamic Bearing (FDB) fans are designed to take advantage of the impact absorbance effects of oil. They are extremely reliable and generate considerably less operating noise and heat than ball-bearing fans. The lubrication of the bearing surface reduces friction and vibration and therefore lowers overall power consumption. Due to the effortless, quieter rotations and its robust construction, this reliable fan technology also greatly increases the lifespan of the fan. HOW IT WORKS

When the fan shaft rotates, high-pressure oil drifts along the grooves of the bearing sleeve to generate a thin layer of lubrication between the bearing faces. As the speed increases, so do dynamic oil pressure, and the shaft is lifted from the bearing to create smooth, effortless rotations. The herringbone shape of the groves helps to efficiently channel the lubricant and avert leakage.