General Information High-speed scalable storage server Synology DS918+ is designed for small and medium-sized businesses and IT enthusiasts. With a powerful built-in AES-NI hardware encryption engine, DS918+ provides exceptional encrypted file transmission. Also capable of transcoding up to two channels of H.265/H.264 4K videos at the same time, DS918+ is ideal for sharing and storing ultra-high definition media content. Satisfy your need for performance and capacity DS918+ supports up to two M.2 NVMe 2280 SSDs, allowing fast system cache creation without occupying internal drive bays. Scalable up to 9 drives with a Synology Expansion Unit DX517, DS918+ answers the need for flexible storage capacity. Btrfs: Next generation storage efficiency Btrfs file system introduces the most advanced storage technologies to meet the management needs of modern large scale businesses: Flexible Shared Folder/User Quota System provides comprehensive quota control on all user accounts and shared folders Snapshot Replication provides schedulable and storage capacity-saving data protection with 1,024 shared folder backups and 65,000 system-wide snapshots File or folder level data restoration makes data recovery fast and flexible Automatic file self-healing detects and recovers corrupted files without user intervention Digital asset protection Powered by Synology DiskStation Manager (DSM), Synology NAS offers advanced security measures to protect against sudden data loss and potential security holes. Security Advisor Analyzes system settings, password strength, network preferences, and removes any possible malware. AppArmor A kernel-level enhancement that blocks malicious programs from accessing unauthorized system resources. AES 256-bit encryption Encrypt shared folders and network data transmission to keep data from unauthorized access. 2-step verification Prevent others from logging in to your DSM by generating a one-time password (OTP) on your mobile device. Trust Level Customize the trust level in Package Center to avoid installing packages from untrusted sources, safeguarding your NAS from unknown or tampered package files. Synchronize files across your devices Cloud Station Suite provides real-time data synchronization across all your devices, such as computers, mobile devices, and other Synology NAS whenever a file is modified. “Intelliversioning” keeps the most important file versions to better utilize storage space. 4K Multimedia Server Access and stream your 4K media content anytime and anywhere. DS918+ supports 4K H.264/H.265 online transcoding via Video Station and DS video, allowing 4K videos to be converted and played on the fly on other computers, smartphones, and media players that originally do not support Ultra HD formats. Storage Number of Hard Drives Supported: 4 Number of Hard Drives Installed: No Total Hard Drive Capacity Supported: 48 TB Number of Solid State Drive Supported: 6 Number of Solid State Drive Installed: No Processor & Chipset Processor Manufacturer: Intel Processor Type: Celeron Processor Model: J3455 Processor Core: Quad-core (4 Core) Processor Speed: 1.50 GHz Memory Standard Memory: 4 GB Memory Technology: DDR3L SDRAM Network & Communication Ethernet Technology: Gigabit Ethernet I/O Expansions Number of Total Expansion Bays: 4 Number of 2.5″/3.5″ Bays: 4 Controllers Controller Type: Serial ATA RAID Supported: Yes RAID Levels: 0, 1, 5, 6, 10, Basic, Hybrid RAID, JBOD Interfaces/Ports Total Number of USB Ports: 2 Number of USB 3.0 Ports: 2 Network (RJ-45): Yes eSATA: Yes Software Operating System: DiskStation Manager Management & Protocols Protocols: iSCSI Protocols: HTTPS Protocols: DLNA Protocols: AFP Protocols: CIFS Protocols: Kerberos Protocols: FTP Protocols: NFS Physical Characteristics Height: 6.5″ Width: 7.8″ Depth: 8.8″ Form Factor: Desktop Weight (Approximate): 5.03 lb Miscellaneous Package Contents: Powerful and Scalable 4-bay NAS for Growing Businesses 1 x Accessory Pack 1 x AC Power Adapter 1 x AC Power Cord 2 x RJ-45 LAN Cables 1 x Quick Installation Guide Environmentally Friendly: Yes Environmental Certification: RoHS Warranty Limited Warranty: 3 Year Product images may differ from actual product appearance.