Description

Synology DiskStation DS1621+ 6-Bay NAS Enclosure Unit

Discover the Synology DS1621+ 6‑bay NAS with quad‑core Ryzen V1500B CPU, 4 GB ECC DDR4 (expandable to 32 GB), dual M.2 NVMe caching, and four Gigabit LAN ports. Ideal for scalable SMB storage.

Product Overview

Synology DiskStation DS1621+ is a robust six‑bay NAS built for small and medium businesses. Powered by an AMD Ryzen V1500B quad‑core CPU (2.2 GHz) and ECC DDR4 memory, it ensures reliable performance and data protection. With dual M.2 NVMe slots for cache acceleration, scalable storage via expansion units, and multiple networking options, it’s engineered for intensive workloads, virtualization, backup, and file sharing with Synology’s renowned DSM software.

Key Features

AMD Ryzen V1500B quad‑core processor (2.2 GHz) for efficient multitasking and VMs.
ECC DDR4 RAM (4 GB included), upgradeable up to 32 GB for enhanced data integrity.
Six SATA drive bays with hot-swap support plus two dedicated M.2 2280 NVMe cache slots.
Four 1 GbE LAN ports with support for link aggregation and failover.
PCIe Gen3 x8 slot allowing installation of 10 GbE network cards or additional M.2 adapter.
Synology Hybrid RAID, support for Btrfs snapshots, backup applications, virtualization tools, and surveillance packages built into DSM.

Specs

Specification	Details
CPU	AMD Ryzen V1500B, quad-core 2.2 GHz
Memory	4 GB ECC DDR4 SODIMM (1 slot free), expandable up to 32 GB
Drive Bays	6 × 3.5″ / 2.5″ SATA HDD/SSD, hot‑swappable
M.2 Slots	2 × NVMe 2280 (for cache only)
Expansion Support	Up to 16 total bays via two DX517 units
Networking	4 × 1 GbE LAN (support link aggregation/failover)
Expansion Ports	2 × eSATA for expansion units
USB Ports	3 × USB 3.2 Gen 1
PCIe	1 × Gen3 ×8 slot (x4 link) for 10GbE NIC or NVMe adapter
RAID Support	SHR, RAID 0, 1, 5, 6, 10, JBOD, Basic
File Systems	Internal: Btrfs, EXT4; External: Btrfs, EXT4/3, FAT, NTFS, HFS+, exFAT*
Power Consumption	~51 W active; ~25 W idle
Cooling & Noise	2 × 92 mm fans; ~25.2 dB(A) noise level
Dimensions & Weight	166 × 282 × 243 mm; 5.1 kg
Warranty	3 years standard; option to extend to 5 years

Why Choose This Product

Combines data integrity with performance staples: ECC memory and a powerful Ryzen processor allow safe virtualization and heavy multi-user workloads.
Flexible architecture: support for caching, disk expansion, and PCIe add-ons enables future scalability.
Feature-rich DSM software: includes backup tools (Active Backup, Hyper Backup), file sharing, virtualization, surveillance, and centralized device management.
Networking resilience: link aggregation and failover via four Gigabit ports ensure reliable connectivity.

FAQs

Q1: What is the maximum memory supported?
Up to 32 GB ECC DDR4 across two SODIMM slots (16 GB × 2).

Q2: Can I use third-party RAM?
Some ECC SODIMMs work but may trigger a warning in DSM. For full warranty and compatibility, Synology-branded ECC RAM is recommended.

Q3: Does it support NVMe storage?
Yes, two M.2 NVMe slots are available—but these are for caching only, not storage volumes.

Q4: Is it suitable for virtualization and Docker?
Yes—users report stable Docker and light VM workloads, especially when memory is expanded beyond the base 4 GB.

Q5: Does it support RAID expansion?
Yes—supports up to 16 total bays via two DX517 expansion units, enabling large-scale storage deployment.

Q6: Why choose ECC memory?
ECC protects against silent data corruption such as bit rot—critical for NAS environments using Btrfs and long-term storage