Xeon D-1531 6-Core 2.2GHz CPU; 48GB DDR4 ECC SODIMM Memory; 264TB (12 x 22TB) 6Gb/s SATA 3.5-inch HDDs for High-Capacity Storage Powerful Storage Solution: The DS3622xs+ by Synology is a robust 12-bay NAS designed for high-performance needs equipped with a six-core Xeon processor and delivering staggering throughput of 4,719 MB/s sequential read and 260,691 4K random read IOPS Multi-Purpose Business Applications: From serving as a file server with fast SMB file serving to offering certified block storage for SMBs and providing a versatile platform for hosting business solutions Maximized Uptime and Flexibility: The DS3622xs+ features out-of-band management for simplified troubleshooting and a high-availability solution for creating active-passive clusters nd allows flexible upgrades using add-in cards for increased bandwidth, fast SSD cache, or both Hard drives and memory upgrades included separately not installed, installation required