It's running Windows 7 ultimate with 64 Gb of Ram. it has a color light ribbon on the side bottom of the computer and GC-support holder(red) to stop the GC from sagging. The Case is thermaltake View 27 but i had modified the front of the glass and placed a Iron mesh for better airflow. In my mind a great PC is one that is very efficient with its parts and air flow. This is why i love Noctua Fans.