HP Flexible Slot Power Supplies provide power efficiency with 80Plus Platinum-certified power supplies that lower server power requirements and reduce power waste in your data center. Flex Slot Power Supplies have a form factor that is 25% smaller than previous generation power supplies, providing more space to add additional server options and improve the performance of your servers. Flex Slot Power Supplies provide fast, tool-less hot plug access to server power supplies for greater serviceability and are supported across the entire ProLiant DL300 Gen9 Server family, simplifying your spares strategy and further reducing data center costs. Are you currently using or interested in the HP Power Discovery Services solution? Support for Power Discovery Services can be added to all ProLiant DL300 Gen9 Servers with the Flex Slot 1400W Platinum Plus Power Supply option.