If what you want is maximum performance and lots of extras, the Shuttle XPC Barebone SZ68R5 is the natural choice. You'll be astounded by its comprehensive equipment list and new R5 design. With the SZ68R5 you get a barebone that's bursting with features and functions. As a first for Shuttle, this machine supports "Smart Response Technology" (SSD caching), which enables an SSD drive to be used for increased speed (e.g. an mSATA-SSD in the Mini-PCIe slot). The SZ68R5 also uses intelligent Intel Core processors with LGA1155 socket. Up to 32 GB DDR3 RAM can be spread across four memory sockets. A 500 W power supply with 80-PLUS certification comes pre-installed.