Synology Disk Station DS218j - NAS server - 2 bays - SATA 6Gb/s - RAID 0, 1, JBOD - RAM 512 MB - Gigabit Ethernet - iSCSI

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Identifiers
MPN Synology DS218j
Dimensions / Weight
Key Features
Bays
The total number of drive bays available in a storage enclosure or similar device, indicating how many individual drives can be installed.
2 Bay
Cables included
A list of the cable types that are supplied with the product, such as USB, HDMI, VGA, DisplayPort, LAN (RJ‑45), SATA, audio or other relevant connectors.
1 x network cable
Compliant Standards DLNA CERTIFIED
Compression format H.264
Cooling
The type of cooling mechanism used by a product, such as active fan‑based cooling, passive heat sinks, liquid cooling, or no active cooling. It indicates whether the device relies on airflow, conduction, or other methods to dissipate heat and helps users assess thermal performance and noise levels.
Fan
CPU Cores
The total count of physical processing units (cores) present in a central processing unit (CPU). This integer value indicates how many independent execution threads the CPU can handle simultaneously, influencing multitasking performance and computational throughput.
Dual Core
CPU Model
The complete name or part number of the central processing unit used in a device, such as "Intel Core i7-10700K" or "AMD Ryzen 5 5600X". This value allows users to distinguish between different processor families, generations, and performance levels.
Armada 385 88F6820
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.
1.3 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.
Marvell
Data Link Protocol 10Mb LAN, 100Mb LAN, GigE
Device type
The general classification of a product, such as tablet, smartphone, router, or computer. It indicates the primary function or form factor that helps buyers quickly identify and compare similar items.
NAS server
Dimensions
The pixel dimensions of a display or image, expressed as width by height (e.g., 1920x1080). It indicates how many pixels are used to render the visual content and is commonly used for monitors, TVs, smartphones, cameras, and digital images.
100 x 165 x 225.5 (WxHxD mm)
DOM Module
Indicates whether the product includes a Digital Optical Monitoring (DOM) module that provides optical power, temperature, and other diagnostics for fiber‑optic connections.
No
Drive Form Factor Support
A specification of the physical drive sizes and configurations that a storage device can accommodate. Each value lists one or more drive dimensions (e.g., "12 x 2.5"/3.5") indicating the number of bays and the supported platter or SSD form factor. This attribute helps users determine whether their existing drives fit the enclosure or server.
2 x 2.5"/3.5"
Encryption algorithm
A list of cryptographic and authentication methods that the device can use for secure network communication or data protection. Each entry represents a distinct algorithm or protocol, such as encryption ciphers (e.g., AES, WEP), authentication mechanisms (e.g., RADIUS, WPA‑PSK), or network security protocols (e.g., HTTPS, SSL/TLS). The values are typically separated by commas and may include both technical identifiers and consumer‑friendly labels.
SSL, TLS
Expansion bays
Cantidad total de ranuras disponibles en el producto para la instalación de módulos o dispositivos adicionales, como tarjetas de expansión, controladores u otros componentes que se insertan físicamente en el equipo.
2 (total) / 2 (free) x internal - 2.5" / 3.5"
External Connectivity
A comma‑separated list of the physical connector types that are available on the exterior of a product, such as USB (various versions), HDMI, DisplayPort, Ethernet (RJ‑45), Thunderbolt, SATA, eSATA, SD card reader, audio jacks, and other common interfaces. The list helps users identify which ports they can use for data transfer, video output, power delivery or expansion.
2 x USB 3.0 Type-A
Host connectivity
A comma‑separated list of the physical network interfaces that a product supports for wired connectivity, such as Gigabit Ethernet or 10 Gigabit Ethernet. The values describe the type and speed of each interface.
Gigabit Ethernet
Humidity range operating
The range of relative humidity (expressed as a percentage) within which the product is designed to operate reliably. Values are given as a minimum–maximum interval such as "10 to 80%" and indicate the acceptable environmental moisture level for optimal performance.
5 - 95%
Interface type
A list of the physical or logical interfaces that a product can use to connect with other devices or components, such as USB, PCI Express, SATA, M.2, Ethernet, Thunderbolt, and similar standards.
SATA 6Gb/s
Internal Flash Memory
Indicates whether the product contains an internal flash memory component that can be used for storage or firmware. A value of "Yes" means a built‑in flash module is present; "No" indicates it is absent.
No
LAN Type
The type of network connection supported by the product, such as Ethernet speeds (e.g., 10/100/1000 Mbps) or combined interfaces like 1GbE + 10GbE. It indicates which networking standards are available for data transfer.
10/100/1000
Maximum power consumption
The highest electrical power that a device can draw or consume during operation, expressed in watts (W). It represents the peak energy usage of the product and is useful for estimating maximum power requirements, comparing efficiency across similar devices, and ensuring compatibility with power supplies.
17.48 W
Maximum RAM Memory Supported
The largest amount of random‑access memory (RAM) that a device or component can support, expressed as a data size such as megabytes or gigabytes. It indicates the upper limit of memory capacity for active processes and multitasking performance.
512MB
Maximum storage capacity
The largest amount of digital storage that a product can hold or provide, expressed as a numeric value with an appropriate unit such as GB, MB, TB, or a descriptive label indicating the type of media (e.g., SSD, HDD). This attribute helps users understand how much data can be stored on the device and compare storage options across products.
24 TB
NAS Form Factor
Represents the physical size and mounting configuration of a Network Attached Storage device, such as 1U, 2U, or desktop tower. The value indicates how many rack units the enclosure occupies or whether it is a standalone tower, allowing users to match the NAS with available server racks or workstations.
Desktop
Noise Level 18.2 dB(A)
Power Device
The main type of electrical supply that powers the device, such as mains electricity, batteries, USB power, or a combination of these options.
External power adapter
Processors installed
The total number of physical processor units that are installed in a device or system. It represents how many separate CPU chips are present, regardless of model, generation, or core count, and helps users understand the overall processing capacity.
1 x Marvell ARMADA 385 1.3 GHz
PSU Type
The form factor or mounting style of a power supply unit, such as ATX, SFX, or other standardized sizes. It indicates the physical dimensions and connector layout that determine compatibility with computer cases and motherboards.
External
PSU Wattage
The average electrical power drawn by a device during normal operation, expressed in watts (W). It represents the typical energy usage of the product under standard load conditions and helps users estimate power requirements and efficiency.
60 W
RAID Level RAID 0, RAID 1, JBOD
RAM Memory
The amount of random‑access memory installed in a device, expressed as a data size (e.g., megabytes or gigabytes). It indicates how much information the system can hold for active processes and affects multitasking performance.
512 MB DDR3
RAM Memory Type
The specific type of RAM module installed in a device, such as DDR3, DDR4, SO‑DIMM, or UDIMM. It indicates the generation and form factor of the memory that determines compatibility with motherboards and performance characteristics.
DDR3
Remote Management Protocol
Lista de los protocolos que un dispositivo puede usar para la configuración, supervisión o mantenimiento remoto. Cada valor indica un protocolo individual (por ejemplo, SNMP, HTTP/HTTPS, Telnet, SSH) y permite al usuario saber cómo acceder a las funciones administrativas del equipo.
SNMP, Telnet, HTTP, HTTPS, SSH
Security Slot Type
The type of security slot built into a device, such as Kensington or Noble Wedge, which allows the attachment of a lock for physical protection.
Kensington security slot
Specification No
Total storage capacity
The overall amount of digital storage that can be held by the device, including all built‑in and removable options. The value is expressed as a numeric quantity followed by an appropriate unit such as GB, MB, or TB.
0 GB
Total Storage Included
Cantidad total de datos que puede almacenar un producto cuando se incluye la unidad de almacenamiento interna o externa que viene con el dispositivo, expresada con su unidad habitual (por ejemplo GB, MB o TB). Este valor representa la capacidad de almacenamiento disponible para el usuario sin necesidad de añadir componentes adicionales.
N/A
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.
RAID
Voltage required AC 120/230 V (50/60 Hz)
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.
88 kg
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.