Celeron J3355 Dual-Core 2.0GHz CPU, Up To 2.5GHz Burst; 6GB DDR3L non-ECC SODIMM Memory; 48TB (6 x 8TB) SATA 2.5' SSDs for Rapid, High-Speed Storage Stylish and Efficient: The DS620slim offers a mini 6-bay NAS, measuring 121 x 151 x 175 mm, ensures flexibility in placement while supporting near-instantaneous snapshot technology Next-Generation Storage Efficiency: The DS620slim ensures high-level data integrity, offers comprehensive quota control, and provides schedulable, storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshots Ultimate File Management and Sharing: Manage and share files with File Station, compatible with protocols like AFP, FTP, iSCSI, NFS, SMB, and WebDAV Hard drives and memory upgrades included separately not installed, installation required