With EMC Anti-electromagnetic Interference - Full copper output wire and sufficient material & high transforming rate. Deliver up to over 90% conversion efficiency, high efficiency and energy saving. 80mm Dual Ball Bearing Fan - Providing maximum airflow and near-silent operation. Universal AC Input Design - Stable enough for 220V voltage input available with 2200W rated power and 6Pin connectors. Full-bridge Resonant - high power output efficiency and increases the performance and stability of your system. This 1800W switching power supply is designed for professional mining machine with high efficiency and high conversion rate. It's widely used in mining industry and industrial equipment of high power 12V single road as power supply for the main board, graphics card and other parts. Colour: silver Material: metal Package Contents: 1 supply Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.