This article covers Synology DiskStation DS918+ storage server Ethernet LAN Desktop Black NAS.

Overview

The Synology DiskStation DS918+ is a 4-bay network-attached storage (NAS) designed for home users and small-to-medium businesses. Powered by an Intel Celeron J3455 quad-core processor (burst up to 2.3GHz) and 4GB of DDR3L RAM (expandable to 8GB), it strikes a solid balance between performance and affordability. Two Gigabit Ethernet ports and optional 2.5GbE adapter support give you flexible networking options. This compact desktop NAS runs Synology's DiskStation Manager (DSM), a mature and intuitive operating system that offers file sharing, backup, media serving, virtualization, and more. Hardware-accelerated 4K transcoding makes it an excellent choice for Plex or Emby media servers. The DS918+ has been a staple in the mid-range NAS market since its 2017 launch and remains widely available.

Connectivity & Compatibility

Front panel: USB 3.0 port, SD card slot. Rear panel: two USB 3.0 ports, two Gigabit LAN ports, one eSATA port. The eSATA port allows connection to expansion units like the DX517, enabling up to 9 total drive bays. Drive compatibility: 3.5-inch SATA HDD/SSD (6Gbps); 2.5-inch drives can be installed with optional brackets. RAID modes include 0, 1, 5, 6, 10, and Synology Hybrid RAID (SHR). Network protocols: SMB, AFP, NFS, FTP, WebDAV, and more. Link Aggregation and failover are supported across the two LAN ports.

Product Info

Released in 2017, the DS918+ is still available new from major retailers like . Pricing typically ranges around ¥50,000 (subject to market fluctuations). The standard warranty is 2 years. In the box: power adapter, LAN cable, quick installation guide, and screws. Market positioning: mid-range. Its 4K transcoding capability and expansion options make it a logical upgrade from entry-level NAS units.

Best Use Cases

Home users wanting centralized photo/video management: Synology Photos app provides automatic smartphone backup and easy family sharing. If you only need basic file storage, a cheaper model like the DS220j may suffice. Small offices needing file sharing and backup: Expandable to 9 bays, it grows with your data. Link Aggregation can boost throughput. For 10GbE environments, consider the higher-end DS1522+. Plex/Emby 4K media server enthusiasts: The Celeron J3455's Quick Sync Video handles hardware transcoding of 4K HDR content smoothly. Be mindful of simultaneous 4K streams — limit to one or two. Docker and light virtualization experimenters: DSM's Docker package runs containers for various services. However, the 8GB RAM ceiling limits heavy virtual machines.

Product Disclosure (Amazon)

  • Manufacturer: Synology
  • Seller: New Oriental Technology
  • Fulfilled by: New Oriental Technology
  • ASIN: B075DDZ894
  • Note: This article covers a manufacturer-made product based on Amazon listing details.