Description
Synology DiskStation DS918+
Hardware Specifications
| Model | DS918+ |
|---|---|
| CPU | Intel Celeron J3455 quad‑core 1.5 GHz (burst up to 2.3 GHz) with AES‑NI encryption engine |
| System Memory | 4 GB DDR3L (expandable to 8 GB) |
| Drive Bays | 4 × 3.5″ or 2.5″ SATA HDD/SSD (hot‑swappable) |
| M.2 Slots | 2 × NVMe M.2 2280 slots for cache |
| Maximum Expansion | Up to 9 drives with DX517 expansion unit |
| External Ports | 2 × USB 3.0, 1 × eSATA |
| LAN Ports | 2 × Gigabit RJ‑45 (supports Link Aggregation / Failover) |
| Memory Swap | 1 additional memory slot (expandable to 8 GB total) |
| System Fans | 2 × 92 mm fans |
| Dimensions (HxWxD) | 166 × 199 × 223 mm; Weight: 2.28 kg |
| Noise Level | 19.8 dB(A) |
| Power Supply | 100 W external adapter (100–240 V AC) |
| Power Consumption | Access: ~28.8–28.8 W; Hibernation: ~12.6 W |
| Operating Temperature | 5 °C to 40 °C |
| Storage Temperature | −20 °C to 60 °C |
| Relative Humidity | 5%–95% RH |
| Warranty | 3‑year limited hardware warranty |
Software Specifications
| Operating System | Synology DiskStation Manager (DSM) |
|---|---|
| Internal File Systems | Btrfs, EXT4 |
| External File Systems | Btrfs, EXT4, EXT3, FAT, NTFS, HFS+, exFAT* |
| RAID Types | Basic, JBOD, RAID 0/1/5/6/10; Synology Hybrid RAID (SHR) |
| Snapshots | Btrfs snapshots: up to 65,000 system-wide; 1,024 per shared folder |
| Performance (encrypted) | Over 225 MB/s read & 221 MB/s write encrypted sequential throughput |
| Video Transcoding | Dual-channel 4K H.264/H.265 real-time transcoding |
| Networking Protocols | SMB, AFP, NFS, FTP, WebDAV, CalDAV, iSCSI, Telnet, SSH, SNMP, VPN (PPTP/OpenVPN/L2TP) |
| Directory Services | Windows AD & LDAP integration |
| Backup & Snapshots | Snapshot Replication, Hyper Backup, Cloud Station Suite |
| Virtualization | VMware vSphere, Microsoft Hyper‑V, Citrix, OpenStack support |
| Security Features | Firewall, auto-block, HTTPS, SFTP, rsync, AppArmor, Security Advisor, 2-step verification |
| Mobile/Desktop Apps | DS file, DS photo, DS audio, DS video, DS drive, DS cam, Security Advisor, MailPlus, Office, Chat |
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