QNAP TS-253 Pro (8GB RAM version) 2-Bay Professional-grade NAS Intel 2.0GHz Quad Core CPU with Media Transcoding Intel Celeron Quad Core 2.0GHz 8GB DDR3L RAM (max 8GB) SATA 6Gb/s 2 Giga LAN Read 224MB/s Write 222MB/s hardware transcoding HDMI out with XBMC Virtualization Station Surveillance Station max 1 UX expansion unit