ES is the entry level series of Akasa power supplies. These can be described as reliable, highly efficient & affordable. The ES power supplies have been designed with a no frills approach but still include many of the important features found on high-end power supplies. Over 80% efficiency & built in active PFC provides energy saving clean power. The ultra quiet thermally controlled 12cm fan ensures efficient cooling. Strong 12V output balanced on two rails delivers reliable system performance. Fully sleeved cables complete with a generous number of connectors, including PCIe for graphics support. This provides great compatibility & makes it an ideal choice for mainstream & basic computing systems of today & the future.