Synology DiskStation DS1621+ 6-Bay NAS Enclosure
Description
The Synology DiskStation DS1621+ is a diskless six-bay NAS enclosure powered by DiskStation Manager (DSM). It combines an AMD Ryzen™ quad-core CPU, dual M.2 NVMe SSD caching, and optional 10/25 GbE networking to deliver high-performance, scalable storage for homes, SOHO, and small-office environments.
Hardware Specifications
| Specification | Details |
|---|---|
| Drive Bays | 6 × hot-swappable 3.5″/2.5″ SATA HDD/SSD |
| Maximum Raw Capacity | Up to 120 TB (6 × 20 TB) and expandable to 16 bays with two DX517 units |
| CPU | AMD Ryzen™ V1500B quad-core 2.2 GHz |
| Memory | 4 GB DDR4 ECC (1 × 4 GB), expandable to 32 GB (2 × 16 GB) |
| M.2 NVMe Slots | 2 × M.2 2280 NVMe SSD (cache acceleration) |
| Network Interfaces | 4 × Gigabit Ethernet (Link Aggregation & failover); optional 10/25 GbE via PCIe Gen3 x8 NIC slot |
| USB Ports | 2 × USB 3.0 Type-A |
| Expansion Slot | 1 × PCIe Gen3 x8 (for NIC or NVMe SSD expansion) |
| Expansion Unit Support | Scale up to 16 drives with two DX517 expansion units |
| Dimensions (H × W × D) | 166 × 282 × 243 mm |
| Weight | 3.06 kg (without drives) |
| Power Supply & Consumption | 250 W external adapter; 46.55 W (access) / 20.1 W (hibernation) |
| Warranty | 3-year limited warranty |
Key Software & Features
- Btrfs file system with metadata mirroring, file self-healing, and near-instantaneous snapshots (up to 1,024 per shared folder, 65,000 system-wide) for robust data integrity and flexible restoration.
- Active Backup Suite, Hyper Backup, and Snapshot Replication for agentless multi-version protection, off-site replication, and point-in-time recovery.
- Synology Drive for unified file access, on-demand sync, and real-time collaboration across Windows, macOS, Linux, iOS, and Android.
- Hybrid Cloud & Cloud Sync to two-way sync with Google Drive, Dropbox, OneDrive, and Synology C2, while caching hot data on-premises.
- Dual M.2 NVMe SSD caching accelerates random I/O performance without occupying drive bays.
- Optional 10/25 GbE networking via PCIe add-in cards for bandwidth-intensive applications.
Performance & Scalability
The DS1621+ achieves up to 2,323 MB/s read and 1,434 MB/s write SMB sequential throughput and over 110K 4K random read IOPS in optimized configurations. On-demand scale-up to 16 drives with two DX517 units ensures seamless capacity expansion as data needs grow.
Ideal Use Cases
- High-performance file server for small to mid-sized teams.
- Virtualization storage with fast caching for VM and container workloads.
- Hybrid cloud edge node, balancing on-premises speed with cloud archiving.
- Centralized backup hub leveraging snapshot and versioned protection.
- Multimedia streaming with hardware-assisted 4K transcoding.
Reviews
There are no reviews yet.