Synology 1621+ Network Attached Storage (NAS)

Description

The Synology DS1621+ is a compact 6‑bay NAS designed to store and protect critical data. It supports expansion to 16 drives, dual M.2 NVMe cache slots, and 4x 1GbE networking for scalable home or small‑office storage.

Synology DiskStation DS1621+ 6‑bay NAS

Overview

Device Score Summary

CategoryScoreRationale
Features★★★★★6 bays, NVMe cache, and expansion support
Interoperability★★★★☆DSM integration plus broad network protocol support
Setup Ease★★★★☆Well‑documented, UI‑driven setup
Cloud Dependency★★★★★Local NAS; cloud optional for backups
Vendor Trust★★★★☆Strong Synology ecosystem and support
Overall★★★★★Excellent core NAS for home lab storage

★★★★★ Exceptional | ★★★★☆ Very Good | ★★★☆☆ Good Enough | ★★☆☆☆ Frustrating | ★☆☆☆☆ Avoid

Features

  • 6‑bay NAS chassis (3.5″/2.5″ SATA HDD/SSD)
  • Expandable to 16 drives with two DX517 units
  • Dual M.2 NVMe SSD cache slots
  • AMD Ryzen V1500B quad‑core processor
  • 4GB DDR4 ECC memory (expandable)
  • Four 1GbE ports for network throughput and redundancy

Specifications

Price$999.99 (diskless)
ProtocolEthernet (4 x 1GbE)
Hub RequiredNot specified
PowerNot specified
Cloud DependencyLocal (on‑prem NAS)
HA IntegrationSynology DSM integration (local polling)
Voice ControlNone
DimensionsNot specified
WarrantyNot specified

Home Assistant Integration

Integration Method: Synology DSM (official Home Assistant integration).

  • Requirements: DSM user with sufficient permissions
  • Entities: CPU, memory, disks, volumes, network stats, and more
  • Setup: Settings → Devices & services → Add Integration → Synology DSM
  • Notes: Integration uses local polling and can wake the NAS from hibernation

Practical Considerations

  • Scalability: Expandable to 16 drives using DX517 expansion units
  • Performance: Dual M.2 slots allow NVMe cache without using drive bays
  • Networking: Four 1GbE ports; optional higher‑speed NIC support via PCIe (per datasheet)
  • Use cases: File sharing, backups, virtualization, and surveillance workloads

References