Synology RS3621XS+ 12-Bay Rackmount NAS

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Identifiers
MPN Synology RS3621XS
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
Backup function
Indicates whether a device has the capability to create backups of its data or settings, allowing restoration in case of loss, failure, or interruption.
Yes
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.
No
Certification
A list of official certifications or compliance marks that the product has received from regulatory bodies, safety organizations, or industry standards groups. Each entry represents a distinct certification such as CE, FCC, RoHS, UL, or WEEE, and may include additional details like version numbers or specific test reports.
FCC CE BSMI VCCI RCM EAC CCC KC UL
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.
Rack (2U)
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
CPU 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.
Intel Xeon D
CPU Socket
The physical connector used by a processor to attach to a motherboard or other compatible platform, such as LGA 1151, BGA 1440, Socket AM4, or LGA 1200. This attribute indicates the exact socket designation required for proper CPU installation and compatibility with other hardware components.
Socket 754
CPU Speed
The maximum operating frequency of a central processing unit (CPU), expressed in hertz (Hz). This value indicates how many cycles per second the CPU can execute under normal conditions and is useful for comparing performance potential across different models.
2.1 GHz
CPU Type
The specific name or designation of the central processing unit installed in a device, such as "Intel Core i5-11400" or "AMD Ryzen 7 5800X." It identifies the exact processor variant and helps users compare performance, compatibility, and features across products.
Intel Xeon
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.
724 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
Disk form factor
The physical size or shape of a storage disk, indicating the dimensions and mounting format used in computers and other devices. Common values include standard sizes such as "3.5" in., "2.5" in., and form‑factor codes like "M.2 2280" or "mSATA". This attribute helps users identify which drives are compatible with a given enclosure, motherboard, or system.
2.5 & 3.5
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.
6
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.
8 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.
88 mm
Intel Secure Key Technology version
The specific version number of Intel Secure Key technology supported by the processor, indicating the generation and capabilities of the secure key feature set.
1.00
Internal memory type
The type of memory physically installed inside a device, such as DDR4 SDRAM, LPDDR3, or other RAM variants. It indicates the architecture and generation of the internal memory modules that the product uses or supports.
DDR4
Maximum CPU configuration
The highest number of physical or logical processor cores that a computer system can support or is configured with. It indicates the maximum parallel processing capacity available for running applications and workloads.
1
Maximum Ethernet LAN data rate supported
The highest theoretical speed at which a device can transfer data over its Ethernet interface, expressed in bits per second or multiples such as kbps, mbps, gbps. It represents the maximum throughput achievable under optimal conditions and is useful for comparing wired network performance across devices.
10000 Mbit/s
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.
64 GB
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.
UDIMM
Network Card Speeds
The maximum data transfer rate supported by the network interface card, expressed in bits per second or common abbreviations such as Gbps or Mbps. This value indicates how fast the device can send and receive data over a wired connection.
10/100/1000 MBps
Noise Level 50.2 dB
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 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 - 35 °C
Power consumption 142.5 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.
72.76 W
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.
500 W
Processor boost frequency
The highest clock speed a processor can reach when its turbo or boost feature is active, expressed in hertz (Hz). This value indicates the peak performance capability of the CPU under load and helps users compare how fast a processor can run beyond its base clock speed.
2.7 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.
D-1541
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.
5,6
Storage drive interface
List of physical or logical interfaces that allow a storage drive to connect with other components, such as SATA, M.2 PCIe, U.2, SAS, NVMe or other standard connections.
Serial ATA II, Serial ATA III
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.
12
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.
Storage server
USB Support
A list of the USB interface versions that a product supports, such as USB 2.0, USB 3.0, USB 3.1, USB 3.2 or combinations like "USB 2.0 & USB 3.0". The values indicate which USB standards are available for connecting peripherals and external devices.
USB3.0
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.
14.5 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.
482 mm
Synology

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.