Storage NAS Synology DiskStation DS1621+ 6-BAY (SNG-DS1621PLUS)

Storage NAS Synology DiskStation DS1621+ 6-BAY (SNG-DS1621PLUS)

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The Synology DS1621+ (SNG-DS1621PLUS) is a 6-bay desktop DiskStation designed to store and protect critical business data. Its compact desktop form factor delivers 174% higher 4K random read IOPS than its predecessor, making it well suited for content creators, IT administrators, and businesses with large file collections that need to start small and scale as their data grows.

Key Features of Synology DS1621+

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6 Drive Bays, Expandable to 16 Drives
Supports 6 x 3.5" or 2.5" SATA HDDs/SSDs, expandable up to 16 drives with two DX517 expansion units, supporting up to 108TB of total capacity.

Powered by a Quad-Core AMD Ryzen V1500B Processor
Driven by a 4-core AMD Ryzen V1500B processor at 2.2 GHz, with a hardware encryption engine (AES-NI) and expandable DDR4 ECC memory starting at 4GB.

Significant Performance Gains Over the Previous Generation
Delivers over 110,000 4K random read IOPS — a 174% improvement — with 76% faster sequential write speeds compared to its predecessor (DS1618+), reaching sequential write speeds of up to 2,300 MB/s.

Built-In M.2 NVMe SSD Cache Without Sacrificing Drive Bays
Equipped with two M.2 2280 slots for NVMe SSD cache, accelerating HDD arrays by 20x or more without occupying the main drive bays.

Networking with Link Aggregation and Upgrade Support
Equipped with four Gigabit Ethernet ports supporting link aggregation and failover for continuous high-speed data transfer and network redundancy, plus a slot for optional 10GbE network cards.

Comprehensive Connectivity
Equipped with three USB 3.2 Gen 1 Type-A ports and two eSATA ports for peripheral connectivity and additional expansion.

Full Virtualization Support
Supports VMware vSphere 6 with VAAI integration to offload storage operations, Windows ODX for faster data transfer and migration, and OpenStack Cinder to turn the NAS into a block-based storage component.

Multiple RAID Types for Data Protection
Supports RAID 0, 1, 5, 6, 10, Synology Hybrid RAID (SHR), Basic, and JBOD, offering flexibility based on performance and data protection needs.

Btrfs File System with Advanced Data Protection
Built on the Btrfs file system, optimized by Synology for high reliability and performance, with advanced snapshot technology, file self-healing, and a storage quota system for efficient shared folder management.

Managed Through Synology DSM
Powered by DiskStation Manager (DSM) software with a full suite of backup and restoration solutions, including Synology Hyper Backup for scheduled off-site protection to Synology NAS, Synology C2 Cloud, or other public cloud providers.

Ideal Applications

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• Small to medium-sized businesses needing flexible, scalable storage
• Content creators and IT administrators with large file libraries
• Virtualization and iSCSI storage systems
• Backup and file collaboration workflows
• Businesses wanting to start small and expand as data grows

Why Choose Synology DS1621+

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The Synology DS1621+ is a 6-bay DiskStation delivering 174% higher 4K random read IOPS than its predecessor, with built-in M.2 NVMe cache and scalability up to 16 drives. It's the ideal choice for small to medium-sized businesses needing a powerful, compact storage solution ready to support future data growth.