Qnap TS-431X3-4G 4-Bay NAS Enclosure - AnnapurnaLabs, an Amazon company Alpine AL314 Quad core Processor (1.7GHz, 4 cores), 4 GB SODIMM DDR3 RAM (1 x 4GB, 1 x slots free, 8GB Max), 512 MB Flash Memory, Drive Interface: 4x 3.5-inch 6Gb/s, 3Gb/sSATA Hard Drive Bays, Hot-swappable,hardware encryption, Container Station, Surveillance Station: free 2, max 30, Connectivity: 3 x USB 3.2 Gen, 3 x Gigabit Ethernet Ports, 90W Power Supply