Synology DiskStation DS1621+ 6-Bay NAS Enclosure

BH #SYN1621P • MFR #DS1621+
Synology DiskStation DS1621+ 6-Bay NAS Enclosure
Key Features
  • 6 x 3.5"/2.5" SATA HDD/SSD Drive Bays
  • 2.2 GHz AMD Ryzen V1500B Quad-Core
  • 4GB of DDR4 ECC RAM
  • 4 x Gigabit Ethernet Ports
Built with a quad-core processor, an AES-NI hardware encryption engine, and Btrfs file system support, the DiskStation DS1621+ 6-Bay NAS Enclosure from Synology is a high-performance system designed to store and protect critical assets, while also offering storage scalability so you can start small and expand as your data grows. Boost storage performance by installing dual M.2 2280 NVMe SSDs for high-IOPS system caching, or enhance network speeds by adding a 10GbE SFP+ or RJ45 NIC to the PCIe 3.0 x8/x4 slot. This NAS is equipped with six drive bays that are capable of natively supporting 3.5" SATA hard drives, as well as 2.5" SATA hard drives and SSDs, for data storage. Using its six drive bays, this NAS will allow you to store and share many files, including videos, music, photos, and documents with up to 2048 user accounts and 1000 maximum concurrent connections.
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Synology DS1621+ External HDD/SSD Overview

Built with a quad-core processor, an AES-NI hardware encryption engine, and Btrfs file system support, the DiskStation DS1621+ 6-Bay NAS Enclosure from Synology is a high-performance system designed to store and protect critical assets, while also offering storage scalability so you can start small and expand as your data grows. Boost storage performance by installing dual M.2 2280 NVMe SSDs for high-IOPS system caching, or enhance network speeds by adding a 10GbE SFP+ or RJ45 NIC to the PCIe 3.0 x8/x4 slot. This NAS is equipped with six drive bays that are capable of natively supporting 3.5" SATA hard drives, as well as 2.5" SATA hard drives and SSDs, for data storage. Using its six drive bays, this NAS will allow you to store and share many files, including videos, music, photos, and documents with up to 2048 user accounts and 1000 maximum concurrent connections.

The DS1621+ runs on the Synology DiskStation Manager (DSM) OS, which is a browser-based operating system that helps to simplify managing your Synology NAS. Its CPU is a 2.2 GHz AMD Ryzen V1500B Quad-Core and its 4GB of DDR4 ECC RAM, which be upgraded to 32GB, allows frequently used files and applications to be quickly accessed. The NAS is capable of sequential write speeds of up to 2300 MB/s, as well as 110,000 4K random read IOPS.

Also featured are three USB 3.2 Gen 1 Type-A ports, plus two eSATA ports for storage expansion, and network connectivity is achieved via the four Gigabit Ethernet ports, allowing your stored data to be shared with users throughout the network. For those who require RAID support, the DS1621+ supports RAID 0, 1, 5, 6, and 10, as well Synology Hybrid RAID and Basic RAID, each of which offers performance, data redundancy, or a combination of both. For those who do not require a RAID, JBOD is also available, allowing each drive bay to be individually utilized.

The DS1621+ is engineered to be energy efficient. Not only does it offer two 92 x 92mm fans to help keep the system running cool, it supports numerous scheduled power on/off cycles and hard drive hibernation to further reduce power consumption and operation expenses.

The Synology DiskStation DS1621+ 6-Bay NAS Enclosure operates on 100-240 VAC at 50/60 Hz and includes an accessory pack, a power cord, and two RJ45 LAN cables. If you need to expand its storage, the DS1621+ can be connected to two DX517 expansion units. Protection is provided by a limited 3-year hardware warranty.

General Features
Versatility and Raw Power in a Single Solution
The Synology DS1621+ can be a multipurpose powerhouse, suitable for a wide range of usage environments. The compact, desktop form factor makes it easy to store away at home or in a quiet office environment.

  • Up to 110,000 4K random read IOPS and 2300 MB/s sequential write speeds for demanding workloads.
  • Dual M.2 2280 slots for NVMe SSD lets you maximize performance and capacity efficiently.
  • Features 6 bays supporting both SATA HDD/SSD 2.5" and 3.5" drives, but can be expanded by using two Synology DX517 expansion units for a total capacity of 16 bays
  • Powered by Synology DSM, their unified data management operating system.
  • Robust Data Protection with Btrfs
    The DS1621+ uses the Btrfs file system optimized by Synology to offer both high reliability and high performance. Btrfs supports advanced storage technologies that meet the needs of modern business.

  • Advanced snapshot technology provides schedulable and near-instantaneous data protection of shared folders and LUNs.
  • File and folder level data restoration offers users who wish to restore only a specific file or folder more flexibility.
  • Flexible Shared Folders and user quota system provides comprehensive quota control on all user accounts and shared folders.
  • File self-healing allows Btrfs file systems to auto-detect corrupted files using mirrored metadata and to recover broken data using RAID configurations.
  • Inline compression compresses data before writing it to the drive, to optimize storage use and reduce write commands to the drives.
  • On-Premises Collaboration
    Synology Collaboration Suite allows businesses to host their own fundamental IT services for file sharing, concurrent document editing, emails, instant messaging, and more. Create a multi-user collaborative environment while leveraging private cloud infrastructure to reduce privacy concerns. Multilayered security enables secure access to files and services, even for a distributed or remote workforce across Windows, macOS, Linux, Android, and iOS platforms.

  • Synology Drive enables data access, synchronization, and backup via web portal and desktop applications across Windows, macOS, and Linux platforms. Intelliversioning saves historical versions while minimizing storage space usage and supports on-demand data restoration.
  • Synology Office includes Documents, Spreadsheets, and Slides. The online collaborative editing environment allows multiple users to edit, comment, and share data together.
  • Synology MailPlus enables you to set up a secure, reliable, and private email server, with an intuitive web-based client to boost productivity.
  • Synology Chat enables instant conversations and optimizes team communications with powerful features including message encryption, pinning, forwarding, reminders, and scheduling.
  • Synology Calendar helps teams keep track of what's important, with easy to use sharing and scheduling functionality, keeping everyone on the same page.
  • Running & Protecting Virtual Machines
    Synology Virtual Machine Manager (VMM) is a hosted hypervisor that lets users easily set up virtual machines running Windows or Linux based platforms and a virtualized version of Synology DSM, Virtual DSM, on the DS1621+. Using VMM, users can build up a cluster environment with multiple Synology systems for flexibility to perform online migration based on load balancing and resource allocation requirements. High-performance snapshots, replication, cloning, and recovery mechanisms enable comprehensive management and data protection on each VM.

    DSM also simplifies the provisioning and management of storage for virtual machines. Certified for VMware vSphere, Microsoft Hyper-V, Citrix XenServer, and OpenStack, Synology systems can integrate with your virtualization platform of choice through iSCSI or NFS protocols. Install Synology Storage Console for VMware/Windows for additional management convenience and functionality right in the hypervisor.
    Comprehensive Data Protection Options
    The DS1621+ includes a range of backup solutions to protect local, remote, and cloud-based deployment environments, all-inclusive with the device. Easily set up automated backups and even enable self-serve functionality for reduced maintenance and upkeep.

  • Back up data on Synology NAS: Snapshot Replication enables fast snapshots for point-in-time file versioning, which is great for rolling back unintended file modifications and protecting your data against ransomware attacks. Hyper Backup offers a wide range of destinations for backups of your NAS, including for both local and remote on-premises and cloud storage providers.
  • Back up business infrastructure: Synology Active Backup suite is a collection of powerful backup solutions built to protect Windows systems and servers, VMware and Hyper-V VMs, other file servers, and even Google G Suite and Microsoft 365 SaaS clouds.
  • Private Video Surveillance
    With Synology Surveillance Station, the DS1621+ becomes a powerful VMS solution. With support for up to 40 IP cameras, you can cover large installations.

  • 7600 supported cameras, and counting: Find a compatible camera from updated compatibility lists to match your video requirements and budget. ONVIF support prevents vendor lock-in.
  • Private and subscription-free: Unlike cloud-based cameras, you can keep your recordings private and on-premises. Simple per-camera licensing with no subscriptions needed to access your data.
  • Flexible monitoring & control: Access your surveillance system from a web browser, dedicated desktop clients, or from the DS cam mobile app. Internet-optional.
  • Automation & notification: Set up rules to trigger specific actions when an event occurs, such as automatically taking a picture when motion detection is triggered. Get notified by email, SMS, or push notification so that you can act quickly.
  • UPC: 846504003778

    Synology DS1621+ External HDD/SSD Specs

    Key Specs
    Number of Bays
    6x 2.5"/3.5"
    2x M.2 (2280)
    Inputs/Outputs
    4x RJ45 Gigabit Ethernet
    3x USB-A 3.0 / 3.1/3.2 Gen 1
    2x eSATA
    Compatible Drive Interface
    SATA III
    RAID
    RAID 0/1/5/6/10/Hybrid
    Computing
    CPU
    Quad-Core: Up to 2.2 GHz
    Processor
    AMD Ryzen V1500B
    Total Installed Memory
    4 GB ECC DDR4
    User-Replaceable Memory
    1x 4 GB
    Total Memory Slots
    2x SO-DIMM
    Maximum Memory Capacity
    32 GB
    General
    Number of Bays
    6x 2.5"/3.5"
    2x M.2 (2280)
    Inputs/Outputs
    4x RJ45 Gigabit Ethernet
    3x USB-A 3.0 / 3.1/3.2 Gen 1
    2x eSATA
    Compatible Drive Interface
    SATA III
    Media Card Slots
    No
    Form Factor
    Desktop
    RAID
    RAID 0/1/5/6/10/Hybrid
    Hot-Swap Support
    Yes
    PCI Expansion
    1x PCIe 3.0 (x8 Electrical)
    Wake on LAN
    Yes
    Link Aggregation and Failover Support
    Yes
    Networking
    Supported Protocols
    AFP
    CalDAV
    FTP
    L2TP
    NFS
    OpenVPN
    PPTP
    SMB
    SNMP
    SSH
    Telnet
    WebDAV
    iSCSI
    iSCSI LUN
    256
    iSCSI Target
    128
    Max Concurrent Connections
    1000
    Max Folders
    512
    Max Sync Tasks
    16
    Max Groups
    256
    Max User Accounts
    2048
    Max Volume Number
    64
    Max Cameras Supported
    40
    Software
    Installed Operating System
    Synology DiskStation Manager
    Supported File Systems
    Internal: BTRFS, EXT4
    External: BTRFS, EXT3, EXT4, FAT32, HFS+, NTFS, exFAT
    OS Compatibility
    Windows 7 or Later
    macOS 10.12 or Later
    Mobile App Compatible
    Yes
    Supported Browsers
    Chrome, Edge, Firefox, Internet Explorer, Safari
    Supported Languages
    Brazilian Portuguese
    Czech
    Danish
    Dutch
    English
    French
    German
    Hungarian
    Italian
    Japanese
    Korean
    Norwegian
    Polish
    Portuguese
    Russian
    Simplified Chinese
    Spanish
    Swedish
    Thai
    Traditional Chinese
    Turkish
    Security
    Encryption
    AES-NI
    Security Features
    Kensington Security Slot
    VPN Server Connections
    30
    Electrical
    AC Input Power
    100 to 240 VAC, 50 / 60 Hz
    Power Source
    Internal Power Supply
    Power Consumption
    51.22 W (Typical)
    25.27 W (Standby)
    PSU Wattage
    1 x 250 W
    Environmental
    Operating Temperature
    32 to 104°F / 0 to 40°C
    Operating Humidity
    5 to 95%
    Storage Temperature
    -5 to 140°F / -20 to 60°C
    Certifications
    RoHS
    Physical
    Status Monitoring
    LED Indicator
    Audible Alarm
    No
    Cooling
    2x 92 mm Fans
    Noise Level
    25.2 dBA
    Built-In Speakers
    No
    Dimensions
    11.1 x 9.6 x 6.5" / 282 x 243 x 166 mm
    Weight
    11.2 lb / 5.1 kg
    Packaging Info
    Package Weight
    15 lb
    Box Dimensions (LxWxH)
    16 x 13.2 x 12.9"

    Synology DS1621+ External HDD/SSD Reviews

    See any errors on this page? Let us know

    USB 3.2 Gen 1 is this 5, 10, or 20 Gbps?

    USB 3.2 Gen 1 is this 5, 10, or 20 Gbps?
    Asked by: Ivan
    * USB 3.2 Gen 1: originally known as USB 3.0, and previously renamed to USB 3.1 Gen 1. It’s the original USB 3.0 specification, and it can transfer data at up to 5Gbps * USB 3.2 Gen 2: Previously known as USB 3.1, and then later as USB 3.1 Gen 2. It offers speeds at up to 10Gbps * USB 3.2 Gen 2x2: formally known as USB 3.2, it’s the newest and fastest spec, promising speeds at up to 20Gbps (by using two lanes of 10Gbps at once)
    Answered by: Gregorio M.
    Date published: 2020-11-18

    does this support wd 18tb red pro drives?

    does this support wd 18tb red pro drives?
    Asked by: Vernon
    Yes, you can use WD Red Pro drives with the Synology DiskStation DS1621+. There is no practical limit on the capacity of each drive bay, but the maximum size for a single volume is 108 TB.
    Answered by: calvinm
    Date published: 2023-06-01

    The specs say this NAS supports macOS 10.12 and ...

    The specs say this NAS supports macOS 10.12 and later. Does this mean you won't be able to back up a Mac running an earlier OS, like 10.11, to this NAS?
    Asked by: John-Paul
    For what it's worth, my 2012 Mac Pro is running 10.11 with a DS920+ (whose client specs also indicate macOS 10.12 and later). I have not observed any problems with Time Machine alternating between an internal HDD and the DS920+.
    Answered by: Bill
    Date published: 2022-02-09

    What UPS Surge Protection would you recommend for ...

    What UPS Surge Protection would you recommend for this product?
    Asked by: Jonathan
    A UPS such as the CyberPower CP1500AVR (BH #CYCP1500AVRL) would be a good choice for use with this NAS.
    Answered by: calvinm
    Date published: 2022-07-26

    Can drives be hot swapped?

    Can drives be hot swapped?
    Asked by: John
    Yes, drives can be hot swapped in the Synology DiskStation DS1621+ 6-Bay NAS Enclosure.
    Answered by: Kennethc
    Date published: 2023-07-20

    Hello, is this a suitable solution for 2 to 4 ...

    Hello, is this a suitable solution for 2 to 4 video editing clients ? work flow may include sharing 4k prores files. thx
    Asked by: abdelsalam
    If you have a 10Gbe PCI card installed on the Synology DS1621+, then yes (depending on which flavor of ProRes you're editing and assuming you have 7200rpm drives)
    Answered by: Josh
    Date published: 2020-11-18

    Hello, is this a reliable and fast solution for 2 ...

    Hello, is this a reliable and fast solution for 2 to 4 clients sharing 4k prores video files ? all on fcpx thx
    Asked by: abdelsalam
    No, it is not recommended to edit from. You need a NAS with Thunderbolt 3.Here is an example: https://www.bhphotovideo.com/c/product/1446234-REG/qnap_tvs_472xt_pt_4g_us_tvs_472xt_ultra_high_speed_4_bay.html
    Answered by: Sagi
    Date published: 2022-04-24

    Does this support any Sata drives? I have a mix ...

    Does this support any Sata drives? I have a mix of WD gold and black drives. I'll be using the enclosure as a JBOD setup. Thanks
    Asked by: Steve
    The Synology DiskStation DS1621+ 6-Bay NAS Enclosure BH #SYN1621P supports SATA drives.
    Answered by: Reuben
    Date published: 2023-06-26
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