High-speed scalable storage server Synology DS920 is an ideal network-attached storage solution to streamline data management and productivity. Scalable storage design lets you start small and expand storage capacity with Synology DX517 as your data grows. CPU - 4-core 2.0 (base) / 2.7 (burst) GHz Memory - 4GB DDR4 non-ECC Maximum memory capacity - 8 GB (4 GB 4 GB) Performance - Over 225 MB/s and 225 MB/s encrypted sequential reading and writing Backup appliance Using Active Backup for Business you can protect any device in your business and replicate it to the cloud. Designed to provide a comprehensive while centralized data protection solution, helping you backup business PCs, VMs, physical servers, and file servers. You can generate reports based on your policy and see it in your inbox, letting you quickly see backup status without logging into your NAS. Built-in global deduplication greatly reduces storage consumption across devices, platforms and versions. Multimedia Complete multimedia solution for management, streaming, and playback. You can manage all your movies, TV shows and home videos on your DS920 . Download the DS Video app and you can stream to your smart phone, computer or TV- providing you with a fun watching experience. Distribute your photo gallery or videos through one secure shared link with custom permission levels. Technical Specification Synology DS920 4 Bay NAS Enclosure Processor / Memory RAM    4 GB (installed) / 8 GB (supported) - DDR4 Processors Installed    1 x Intel Celeron J4125 2 GHz Number of Cores    Quad-Core Max Supported Qty    1 Max Turbo Speed    2.7 GHz General Device Type    NAS server Host Connectivity    Gigabit Ethernet Total Storage Capacity    0 GB Installed Devices / Modules Qty    0 (installed) / 4 (max) Width    19.9 cm Depth    22.3 cm Height    16.6 cm Weight    2.24 kg Storage Controller Type    RAID Interface Type    SATA 6Gb/s / eSATA RAID Level    RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, JBOD Networking Data Link Protocol    10Mb LAN, 100Mb LAN, GigE Network / Transport Protocol    L2TP, iSCSI, SMB Remote Management Protocol    SNMP, Telnet, SSH Network Services Compatibility    Network File System (NFS), FTP, Server Message Block (SMB), Apple File Protocol (AFP), Web-based Distributed Authoring and Versioning (WebDAV), Calendaring Extensions to WebDAV (CalDAV) Features    B-tree file system (Btrfs), EXT4 file system Encryption Algorithm    AES Expansion / Connectivity Expansion Bays    4 (total) / 4 (free) x hot-swap - 2.5\" / 3.5\" Expansion Slots    2 (total) / 2 (free) x M.2 2280 Interfaces    2 x USB 3.0 ¦ 1 x eSATA ¦ 2 x Ethernet 1000Base-T - RJ-45 Miscellaneous Cables Included    2 x network cable Features    Security lock slot (cable lock sold separately) Security Slot Type    Kensington security slot Power Power Device    External power adapter Voltage Required    AC 120/230 V (50/60 Hz) Manufacturer Warranty Service & Support    Limited warranty - 3 years Environmental Parameters Min Operating Temperature    0 °C Max Operating Temperature    40 °C Humidity Range Operating    5 - 95