Synology DiskStation DS1621+ – 6-Bay NAS

The Synology DiskStation DS1621+ – 6-Bay NAS is a powerful and scalable 6-bay NAS designed for small to medium businesses and IT enthusiasts who require fast performance, secure data management, and future-ready scalability. Powered by the AMD Ryzen V1500B quad-core processor with 4 GB DDR4 ECC memory (expandable to 32 GB), this NAS delivers excellent performance for file sharing, virtualization, and data protection.

With support for M.2 NVMe SSD caching, PCIe 3.0 expansion, and up to 96 TB of raw storage, the DS1621+ is built to handle demanding workloads.

Processor

• Model: AMD Ryzen V1500B
• Architecture: 64-bit, quad-core
• Base Frequency: 2.2 GHz
• AES-NI Hardware Encryption: Supported

Memory

• Installed Memory: 4 GB DDR4 ECC UDIMM
• Maximum Memory: 32 GB DDR4 ECC UDIMM (2 × 16 GB)

Storage

• Drive Bays: 6 × 3.5″/2.5″ SATA HDD/SSD (hot-swappable)
• Maximum Internal Capacity: ~96 TB (using 16 TB × 6 drives, capacity may vary by RAID type)
• Expansion Support: Up to 2 × DX517 expansion units (max 16 drives total)
• RAID Types: Synology Hybrid RAID (SHR), Basic, JBOD, RAID 0, RAID 1, RAID 5, RAID 6, RAID 10
• File Systems:
  • Internal: Btrfs, EXT4
  • External: Btrfs, EXT4, EXT3, FAT, NTFS, HFS+, exFAT

Networking

• LAN Ports: 4 × Gigabit Ethernet RJ-45 (Link Aggregation & Failover supported)
• Optional Upgrade: PCIe Gen 3 x8 slot supports 10GbE NIC for ultra-fast transfer

Expansion & Connectivity

• USB Ports: 3 × USB 3.2 Gen 1 (5 Gbps)
• eSATA Ports: 2 × for DX517 expansion units
• PCIe Slot: 1 × PCIe Gen 3.0 ×8 slot (x4 link) for add-in cards (10GbE NIC, M.2 NVMe SSD adapter, etc.)

Performance

• Sequential Read Speed: ~2,300 MB/s (with 10GbE & NVMe cache)
• Sequential Write Speed: ~1,400 MB/s (with 10GbE & NVMe cache)
• Encryption Performance: Hardware accelerated AES-NI encryption
• Virtualization: VMware vSphere, Microsoft Hyper-V, Citrix, OpenStack

Software & Features

• Operating System: Synology DiskStation Manager (DSM)
• Backup & Recovery: Active Backup for Business, Snapshot Replication, Hyper Backup
• Data Protection: Btrfs file system with self-healing and snapshots
• Business Apps: Synology Drive, Synology Office, Virtual Machine Manager
• Multimedia: Plex Media Server, Video Station, Audio Station
• Surveillance: Synology Surveillance Station with IP camera support

Power & Efficiency

• Power Supply: 250 W PSU
• Power Consumption:
  • ~25 W (HDD hibernation)
  • ~51–55 W (access, depending on drives)

Physical Specifications

• Dimensions (H × W × D): 166 × 282 × 243 mm
• Weight: ~5.1 kg (without drives)
• Cooling: 2 × 92 mm fans with adjustable modes (quiet, cool, full-speed)

Environmental Conditions

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

Warranty & Support

• Warranty: 3 Years (extendable in some regions)

Typical Use Cases

• High-performance business NAS for centralized storage
• Virtualization-ready NAS with PCIe upgrade support
• Scalable backup and disaster recovery hub
• Media streaming server with Plex support
• Secure collaboration with DSM apps

Key Features

• AMD Ryzen V1500B quad-core 2.2 GHz with AES-NI encryption
• 4 GB DDR4 ECC RAM (expandable to 32 GB)
• 6 native bays, expandable up to 16 with DX517 units
• PCIe slot for 10GbE or NVMe SSD cache upgrade
• Quad Gigabit LAN with aggregation and failover support

Meta Description

Synology DiskStation DS1621+ – 6-Bay NAS with AMD Ryzen V1500B, 4 GB DDR4 ECC RAM (expandable to 32 GB), quad Gigabit LAN, PCIe expansion, and support for up to 16 drives. Perfect for SMBs needing high-performance storage.

Datasheet