ASROCK PRO-850B 850W 80 Plus Bronze power supply

The ASRock PRO-850B is an ATX power supply delivering 850 W of output power with 80 Plus Bronze efficiency, suited to gaming PCs, multimedia systems and workstations. According to the manufacturer, efficiency stays above 85 percent at 20, 50 and 100 percent load, which reduces wasted energy during operation. It uses an LLC resonant circuit and a DC-DC converter to achieve this.

A 120 mm fan with convex blades provides active cooling, improving airflow while keeping noise levels down. Four heatsinks help keep the internal components within an optimal temperature range.

For protection, the unit includes over-voltage, over-current, short-circuit, over-temperature and over-load protection. The built-in ErP/EuP energy-saving design limits standby power consumption to no more than 0.5 W.