RS1619xs+ is a high-performance and scalable 1U rackmount NAS designed with upgradable memory and M.2 SSD cache configuration to meet the needs of modern businesses that require a flexible, reliable, and efficient storage solution, Intel Xeon D-1527, 8 GB DDR4 ECC UDIMM (64 GB - 16 GB x 4) max), 4 x 2.5/3.5" drive bays, USB 3.0 x2, eSATA x1, Gigabit x 4 (with Link Aggregation / Failover support), 1 x PCIe Gen2 x8 slot (x4 link) for optional 10GbE adapter card or M.2 SSD Adapter Card, Max IP Cams - 75 (2 Free Licences), SYN928 for rackmount