QNAP TS-453U 4 Bay NAS for SMB, Quad-Core Intel Celeron 2.0GHz (up to 2.41GHz), 4GB DDR3L SDRAM (max 8GB), SATA 6Gb/s, 4 Giga LAN, Read 421MB/s, Write 420MB/s, Virtualization Station, Surveillance Station, VMware, Citrix.
RAM Installed: 4GB DDR3L
Rail Kit SKU: RAIL-C01