Synology DiskStation DS223j – 2-Bay NAS

The Synology DiskStation DS223j – 2-Bay NAS is an entry-level 2-bay NAS designed for home users and small offices who need affordable, energy-efficient, and secure centralized storage. Powered by the Realtek RTD1619B quad-core processor and 1 GB DDR4 memory, it runs on Synology DiskStation Manager (DSM), giving users a powerful platform for file sharing, data backup, multimedia management, and private cloud hosting.

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Processor

• Model: Realtek RTD1619B
• Architecture: 64-bit Quad-Core ARM Cortex-A55
• Base Frequency: 1.7 GHz

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Memory

• Installed Memory: 1 GB DDR4 (non-expandable)

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Storage

• Drive Bays: 2 × 3.5"/2.5" SATA HDD/SSD
• Maximum Internal Capacity: Up to 36 TB (18 TB × 2 drives, may expand as larger drives are released)
• Hot-Swap: Not supported
• Supported RAID Types: Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1
• File System:
  • Internal: Btrfs, EXT4
  • External: Btrfs, EXT4, EXT3, FAT, NTFS, HFS+, exFAT

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Networking

• Ethernet Ports: 1 × 1 Gigabit RJ-45
• Wake-on-LAN / Link Aggregation: Not supported

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External Ports

• USB Ports: 2 × USB 3.2 Gen 1 (5 Gbps)

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Performance

• Sequential Read: ~112 MB/s
• Sequential Write: ~112 MB/s
• Suitable for: File sharing, multi-device synchronization, multimedia access, and personal cloud hosting

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Software & Features (DSM)

• Backup: Synology Drive, Hyper Backup, Time Machine support
• File Sharing: Cross-platform (Windows, macOS, Linux) + mobile support (iOS & Android)
• Cloud Integration: Dropbox, Google Drive, OneDrive sync
• Multimedia: DLNA server, photo and video management apps
• Security: Encrypted shared folders, HTTPS, firewall, auto block, 2-step verification
• User Management: Multiple accounts, granular permissions, remote access

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Power & Efficiency

• Power Supply: External 36 W adapter
• Power Consumption:
  • 3.9 W (HDD hibernation)
  • 17.3 W (access)

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Physical Specifications

• Dimensions (H × W × D): 165 × 100 × 225 mm
• Weight: ~0.88 kg (without drives)
• Cooling: 92 mm × 92 mm fan with adjustable modes (cool, quiet, full-speed)

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Environmental Conditions

• Operating Temperature: 0°C – 40°C
• Storage Temperature: –20°C – 60°C
• Operating Humidity: 5% – 95% RH (non-condensing)

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Warranty & Support

• Warranty: 2 Years (extendable in some regions)

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Typical Use Cases

• Personal or family cloud storage for photos, music, and videos
• Small office centralized file storage and backups
• Affordable RAID 1 protection against drive failure
• Home media server with remote streaming capabilities

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Key Features

• 2-bay NAS with Realtek RTD1619B quad-core CPU and 1GB DDR4 RAM
• Supports up to 36TB storage with RAID 0/1, JBOD, SHR
• 1 × Gigabit LAN + 2 × USB 3.2 ports for external connectivity
• Energy-efficient with low power consumption and quiet cooling
• Ideal entry-level NAS for personal cloud, backups, and file sharing

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Meta Description

Synology DiskStation DS223j 2-Bay NAS with Realtek RTD1619B quad-core CPU, 1GB DDR4 RAM, Gigabit LAN, and RAID support. Perfect for home and small office data backup, file sharing, and private cloud storage. Datasheet