What is "Energy Star" in the Advanced System Configurations ? What is the "Delivery Plus Flag" ? In installation services what is the "OEM IoT Solution" and "OEM NFV Solution" ? for a server that has to manage a network of 10 clients using mostly a management software and a doc/pdf file archive is on-board network card enough or is it better a Broadcom or INTEL network card ? what is "Windows Server 2012R2 Standard, Media, FI Standard Ed Downgrade image, English" ? is it better "600GB 15K SAS,12G,4Kn,2.5,HYB" or "600GB 15K RPM SAS 12Gbps 2.5in Hot-plug Hard Drive,3.5in HYB CARR" ?