QNAP 4-Bay iSCSI SATA Dual-LAN Network Attached Storage TS-459-PRO+-US CPU Intel? Atom? Dual-core Processor DRAM 1GB DDRII RAM Flash Memory 512MB DOM HDD 2.5/ 3.5" SATA x4 HDD Tray 4 x Hot-swappable and lockable tray LAN Port 2 x Gigabit RJ-45 Ethernet port LED Indicators Status, LAN, USB, eSATA, Power, HDD 1, HDD 2, HDD 3, HDD 4