This is a very fast cheap complete server solution.
You have 12x 600GB 15K SAS Hard Drives giving you a total storage capacity of 7.2TB!
The Dell R720XD rack server has 2x Intel Xeon E5-2650 8-Core Processors
You have a total of 64GB PC3-10600 ECC Memory to play with
It's a great solution for creating a Virtual Environment using VMware vSphere, XenServer or Microsofts Hyper-V