Synology DS1621+ NAS Server
Accelerated Performance: 174% higher 4K random read IOPS and 76% faster sequential write speeds compared to its predecessor - Maximize Performance: Turbocharge HDD arrays by 20x or more2 without occupying drive bays using dual built-in M
Stores where to buy this product
Sponsored This site contains affiliate links for which we may receive compensation. More information
This product has not been found in any sponsored store recently, please check similar products from our sponsors or review other stores we offer where you may find the product.
Similar products
Synology DS1621+ NAS Server
The Synology DS1621+ is a high‑performance desktop Network Attached Storage (NAS) solution designed for small and medium businesses that demand robust data protection, flexible storage options, and powerful processing capabilities. Built around the AMD Ryzen V1500B quad‑core processor, this device delivers 2.2 GHz of sustained speed while maintaining energy efficiency with a typical power draw of just 51.22 W. Its compact desktop chassis measures 282 mm width × 166 mm height × 243 mm depth, weighing only 5.1 kg, making it easy to integrate into office environments without compromising on storage capacity.
Core Hardware Architecture
- Processor: AMD Ryzen V1500B, 4 cores at 2.2 GHz, 64‑bit architecture.
- Memory: 4 GB DDR4 ECC SO‑DIMM (expandable up to 32 GB via two slots).
- Power Supply: Built‑in 250 W unit, supporting global AC input of 100–240 V at 50/60 Hz.
- Cooling: Dual 92 mm active fans delivering efficient airflow for sustained performance.
Storage Flexibility and Capacity
The DS1621+ offers six hot‑swap drive bays, each supporting both 2.5″ and 3.5″ SATA HDD/SSD drives. Additionally, it includes two M.2 NVMe slots (M key/B key) for high‑speed SSD caching or additional storage. With a maximum supported capacity of **108 TB**, users can configure RAID arrays ranging from simple mirroring to advanced RAID 10** and RAID 6 setups, ensuring data redundancy and performance optimization.
Connectivity and Networking
- Ethernet: Four Gigabit RJ‑45 ports with support for link aggregation (LACP), port trunking, and Wake‑on‑LAN.
- USB: Three USB 3.2 Gen 1 Type‑A ports for external backups or peripheral devices.
- eSATA: Two eSATA ports for direct connection to external storage arrays.
- PCI Express: One x8 PCIe Gen 3 slot for optional expansion cards (e.g., 10GbE NIC).
Software and Data Protection Features
The DS1621+ runs Synology’s DiskStation Manager (DSM), a Linux‑based operating system that supports a wide range of protocols: SMB (v1–v3), NFS (v3–v4.1), iSCSI, FTP, HTTP/HTTPS, SNMP, LDAP, and CalDAV. DSM provides built‑in backup solutions, including Hyper Backup for multi‑destination backups, Snapshot Replication for point‑in‑time restores, and Cloud Sync for seamless integration with public cloud services.
Data integrity is guaranteed through BTRFS file system support, which offers snapshotting, checksumming, and automatic repair. The device also features ECC memory, ensuring that any single‑bit errors are corrected before they affect data.
Operating Environment and Reliability
- Temperature: Operates between 0 °C and 40 °C, with storage devices tolerating –20 °C to 60 °C.
- Humidity: Suitable for environments ranging from 5 % to 95 % relative humidity.
- Power Consumption: Standby power for HDDs is 25.27 W, while the overall standby consumption remains below 51 W.
- Warranty and Support: While not covered in this article, the DS1621+ benefits from Synology’s extensive support network and firmware updates.
Use Cases for Small & Medium Businesses
The DS1621+ excels in scenarios that require a balance between storage capacity, performance, and cost efficiency:
- File Sharing & Collaboration: Centralized file repository with granular permission controls.
- Virtualization Host: Supports VMware ESXi, Hyper‑V, and KVM guests via iSCSI or SMB.
- Backup Server: Reliable backup target for workstations, servers, and cloud services.
- Media Streaming: High‑throughput media server for 4K content distribution across the network.
Key Specifications Summary
| Feature | Details |
|---|---|
| Processor | AMD Ryzen V1500B, 4 cores @ 2.2 GHz |
| Memory | 4 GB DDR4 ECC (expandable to 32 GB) |
| Drive Bays | 6 hot‑swap SATA (2.5″/3.5″) + 2 M.2 NVMe |
| Maximum Capacity | 108 TB |
| Network Ports | 4 × Gigabit RJ‑45, 2 × eSATA, 3 × USB 3.2 Gen 1 |
| PCIe Slot | 1 × x8 (Gen 3) |
| Power Supply | 250 W built‑in, 100–240 V input |
| Operating Temperature | 0 °C – 40 °C |
| Supported File Systems | BTRFS, ext4 |
| Supported Protocols | SMB v1–v3, NFS v3–v4.1, iSCSI, FTP, HTTP/HTTPS, SNMP, LDAP, CalDAV |
| Maximum RAM Slots | 2 (SO‑DIMM) |
| Dimensions | 282 mm × 166 mm × 243 mm |
| Weight | 5.1 kg |
The Synology DS1621+ stands out as a versatile, high‑capacity NAS that delivers enterprise‑grade reliability in a desktop form factor. Its combination of powerful processing, extensive connectivity, and robust data protection makes it an ideal foundation for any organization looking to build or expand its network storage infrastructure.
| This product in Comparor | |
|---|---|
|
Category
This product is cataloged in our store in these categories
|
- Network-attached storage (NAS) |
|
International
Find this product in one of our international stores
|
 1051.99 EUR  86240.00 CHF  899.00 EUR  919.00 EUR  1889.55 EUR  1229.48 EUR  1259.11 EUR |
| Colors
Predominant colors of the product |
|
| Identifiers | |
| Brand |  Synology is a Taiwanese company that makes network-attached storage (NAS) devices. These devices allow users to store data on a central server that can be accessed by multiple devices on a network. Synology's NAS devices are popular with home users and small businesses because they are easy to use and offer a wide range of features. |
| MPN | Synology DS1621+ |
| ID | 26128187 |
| Dimensions / Weight | |
| Key Features | |
|
AC input frequency The frequency of the alternating current supplied to a power supply or charger, expressed in hertz (Hz). It indicates the acceptable operating range for the electrical mains that powers the device, ensuring proper functionality and safety.
|
50/60 Hz |
|
AC input voltage The range of alternating current voltage that the product accepts from its power source, expressed in volts (V). It indicates the minimum and maximum supply voltages compatible with the device across different regions.
|
100 - 240 V |
|
Access Control List ACL Indicates whether the product supports an Access Control List (ACL) feature, allowing administrators to define rules that permit or deny network traffic based on criteria such as IP address, port number, or protocol.
|
Yes |
|
Browser supported A list of web browsers that the product can run or support, typically including major desktop and mobile browsers such as Chrome, Firefox, Safari, Edge, Internet Explorer, Opera, and others. Each value represents a distinct browser name or version range that has been verified to work with the device.
|
Google Chrome, Firefox, Microsoft Edge, Internet Explorer 10, Safari |
|
Built-in display Indicates whether the product includes a built‑in screen or display unit that can be used directly for viewing content, such as an integrated monitor on a laptop or a built-in display on appliances. A value of "Yes" means the device has such a display; a value of "No" means it does not.
|
Yes |
|
Chassis type The physical form factor of a computer chassis, indicating its size and layout such as Tower, Desktop, Mini‑PC, or rack units (e.g., 1U, 2U). This attribute helps users identify the footprint, mounting options, and compatibility with other hardware.
|
Desktop |
|
Colour The colour or combination of colours that a product is available in, expressed as common names such as "Black", "Silver" or comma‑separated lists like "Black, White". It indicates the visual appearance of the item for consumers.
|
Black |
|
Cooling type The method or mechanism used to dissipate heat from a component such as a processor, graphics card, or other electronic part. It indicates whether the device relies on active cooling (fans or liquid pumps), passive heat sinks, or hybrid solutions, and helps users assess thermal performance and noise levels.
|
Active |
|
Depth The linear measurement of an object from front to back or top to bottom, expressed in a physical unit such as millimeters, centimeters, inches, etc. It indicates how deep the item is and can be used for fitting, compatibility, or spatial planning.
|
243 mm |
|
Device class A free‑text label that identifies the general category or type of a device, such as "NAS", "Server", "Router", "Storage Enclosure" or any other descriptive class used by manufacturers to classify their products. The value is intended to help users quickly understand the primary function or form factor of the item.
|
Small & Medium Business |
|
eSATA ports quantity Represents how many eSATA connectors are physically present on the product, regardless of orientation or version. The value is a simple integer indicating the total count of eSATA ports available for connecting external storage devices.
|
2 |
|
Ethernet LAN Indicates whether the product includes an Ethernet LAN interface for wired network connectivity, allowing data transmission over RJ‑45 or compatible cables.
|
Yes |
|
Ethernet LAN data rates Maximum theoretical speed at which a device can send or receive data over its Ethernet LAN interface, expressed in megabits per second (Mbps) or gigabits per second (Gbps). It represents the upper bound of throughput under optimal conditions and is useful for comparing network performance between devices with wired connectivity.
|
10,100,1000 Mbit/s |
|
Ethernet LAN ports Represents the total count of Ethernet LAN (RJ‑45) interfaces available on a product. The value is an integer indicating how many physical Ethernet ports are present, regardless of speed or generation.
|
4 |
|
Fan diameter The linear measurement across the widest part of a fan, expressed in units such as millimeters (mm), centimeters (cm) or inches (in). It represents the overall width of the fan and is useful for determining fit, compatibility with cases, and airflow characteristics.
|
9.2 cm |
|
Harmonized System HS code The Harmonized System (HS) code is a standardized numerical identifier used internationally to classify traded goods. It consists of up to six digits, where each pair of digits represents progressively more specific product categories. The HS code facilitates customs duties, trade statistics, and regulatory compliance by providing a common language for describing products across borders.
|
84714100 |
|
Height The vertical dimension of a product measured from its lowest to highest point. It is expressed in a physical unit such as millimetres, centimetres or inches and applies to any item where height is relevant, including books, electronics, furniture and other objects.
|
166 mm |
| Installed storage drive type | No |
|
LED indicators A list of the functions or statuses that an LED indicator on a device can display, such as power status, activity, link, and other operational signals.
|
Yes |
|
Mac operating systems supported A list of macOS operating system versions that the product supports or is compatible with, such as "macOS 10.15 Catalina", "macOS 11 Big Sur" or newer releases. Each entry represents a distinct OS version that can run on or be supported by the device.
|
Yes |
|
Maximum RAM supported The largest amount of internal random‑access memory (RAM) that a network attached storage (NAS) device can accommodate, expressed as a data size such as megabytes or gigabytes. It indicates the upper limit for active processes and multitasking performance on the NAS.
|
32 GB |
|
Maximum supported storage capacity The largest amount of digital storage that a product can accommodate, expressed as a numeric value with an appropriate unit such as GB, MB, or TB. This attribute indicates the upper limit of data capacity for the device and helps users compare how much information it can hold.
|
108 TB |
|
Memory form factor The physical configuration or size classification of a memory module, such as SO‑DIMM, UDIMM, RDIMM, or on‑board. It indicates the form factor that determines compatibility with motherboards and other hardware components.
|
SO-DIMM |
|
Number of power supply units The total count of individual power supply units included in or required by the product. It indicates how many separate power supplies are present, whether for redundancy, multi‑voltage operation, or modular design. The value is a whole number and can be used to assess power architecture, backup capability, and installation requirements.
|
1 |
|
Number of Users The total number of individual users that can be supported or accessed by the product or service. It represents a count of distinct user accounts, connections, or licenses and is expressed as an integer value.
|
2048 user(s) |
|
Operating relative humidity The range of relative humidity (in percentage) within which the product is designed to operate reliably. Values are expressed as a minimum–maximum interval such as "20 - 80 %" and indicate the acceptable environmental moisture level for optimal performance.
|
5 - 95% |
|
Operating system installed The operating system that is installed on the device, indicating the software platform that manages hardware resources and provides services for applications. It can be a commercial OS such as Windows or macOS, an open‑source distribution like Linux, or a proprietary firmware used in embedded devices.
|
DiskStation Manager |
|
Operating temperature The range of temperatures in which a product can safely operate without risk of damage or performance degradation. Values are expressed in degrees Celsius (°C) and may represent a single temperature, a minimum–maximum interval, or an average operating point.
|
0 - 40 °C |
| Power consumption | 51.22 W |
|
Power consumption HDD standby The electrical power drawn by a hard‑disk drive while it is in standby mode, expressed in watts (W). It represents the minimal energy usage when the drive is powered on but not actively reading or writing data, and can be used to estimate idle consumption or compare efficiency across storage devices.
|
25.27 W |
|
Power supply location The physical position where the power supply unit is installed or mounted within a device, such as top, bottom, rear, side, front, or built‑in. This attribute helps users understand where to find the power source and plan cable routing or ventilation.
|
Built-in |
|
Power supply unit PSU capacity The electrical power rating of a power supply unit (PSU), expressed in watts (W). It indicates the maximum output power that the PSU can deliver to connected components, helping users assess compatibility and energy requirements for their system.
|
250 W |
|
Processor family The processor family identifies the group or series of CPU models that share a common architecture, design, and performance characteristics. It helps users compare processors across brands and generations by indicating the underlying technology used in the chip.
|
AMD Ryzen |
|
Processor frequency The fundamental operating frequency of a processor, expressed in hertz (Hz). It indicates the speed at which the CPU runs under normal conditions and is typically reported in gigahertz (GHz) or megahertz (MHz). This value helps users compare performance potential across different models.
|
2.2 GHz |
|
Processor model Identifies the exact model of the central processing unit used in a device, including brand and numeric designation such as "Intel Core i5-8250U" or "AMD Ryzen 7 3700X". This value allows users to distinguish between different processor families, generations, and performance levels.
|
V1500B |
|
RAID levels A comma‑separated list that specifies the RAID configurations supported by a storage controller or device. Each entry can be a numeric level (e.g., 0, 1, 5, 10) or a special label such as JBOD. This attribute indicates which disk arrangements the system can manage.
|
0, 1, 5, 6, 10 |
|
Storage drive sizes supported A list of the physical sizes and types of storage drives that a product can accommodate, such as 2.5‑inch, 3.5‑inch, or M.2. The values are typically separated by commas and may include additional descriptors like "M.2" to indicate an internal solid‑state drive interface.
|
2.5,3.5" |
|
Storage drives installed The total count of individual storage devices (hard disk drives or solid‑state drives) that are physically present in the product. It indicates how many separate drives are installed, regardless of capacity or interface type.
|
No |
|
Storage drives supported The total count of physical slots or bays in a device that can accommodate storage drives such as hard disks or solid‑state drives. This value indicates how many separate drives the product can house, helping users assess expansion capacity and configuration options.
|
6 |
|
Storage temperature The range of temperatures in which a device can safely operate without risk of damage or performance degradation. Values are expressed in degrees Celsius (°C) and may represent a single temperature, a minimum–maximum interval, or an average operating point.
|
-20 - 60 °C |
|
Supported storage drive types A list of the types of storage drives that a product can use, such as HDD or SSD. Each entry indicates a distinct drive type supported by the device, allowing users to understand which internal or external storage media are compatible.
|
HDD & SSD |
|
Type The general category or style of the product, such as laptop, printer cartridge, or cooling fan. It helps buyers quickly identify the nature of the item and compare similar products.
|
NAS |
|
USB 3.2 Gen 1 The total count of USB 3.2 Gen 1 (also known as USB 3.1 Gen 1 or SuperSpeed) ports available on the device, indicating how many peripherals can be connected simultaneously via this interface.
|
3 |
|
USB port Indicates the presence and quantity of USB connectors on a product. The value is typically an integer representing how many USB ports are available, regardless of type or version.
|
Yes |
|
Weight The mass of the product expressed in a standard unit such as grams or kilograms. It represents how heavy the item is and can be used for shipping calculations, handling instructions, or consumer information.
|
5.1 kg |
|
Width The horizontal measurement of a product, expressed in a linear unit such as millimetres or inches. It indicates how wide the item is from one side to the other and is used for sizing, fitting, and compatibility purposes.
|
282 mm |
|
Windows operating systems supported A list of Microsoft Windows operating system versions that the product is compatible with, including any relevant architecture or edition information.
|
Yes |
Related articles
Synology Camera License Packs are designed for expanding cameras set up on the Synology Surveillance Station. By applying the license key on the Surveillance Station user interface, you will be able to set up and manage more than one came
The Synology RackStation RS3621XS+ is a powerful 2U rackmount NAS/storage server with a 12-bay enclosure, Ethernet LAN connectivity, and support for both SATA and SSD storage.
Synology CMA-01 is a cable management panel designed to organize cables in server racks. It helps maintain a clean and tidy setup for improved airflow and easier maintenance.
Synology CMA-01 is a cable management panel designed to organize cables in server racks. It helps maintain a clean and tidy setup for improved airflow and easier maintenance.
Synology DS120j is a 1-bay desktop NAS enclosure with Ethernet LAN connectivity for fast file sharing and storage expansion. Its sleek grey design makes it an elegant addition to any workspace.
Synology Camera License Packs are designed for expanding cameras set up on the Synology Surveillance Station. By applying the license key on the Surveillance Station user interface, you will be able to set up and manage more than one came