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Lists the items included in the Synology NAS package for initial setup.
Provides a visual overview of the Synology NAS hardware with numbered components.
Explains different system modes and their corresponding LED indicator statuses.
Illustrates common transitions between various system modes with examples.
Details the color and status meanings for various LED indicators on the NAS.
Lists the technical specifications of the Synology DS1821+ hardware.
Identifies available spare parts for the Synology NAS, such as fans and drive trays.
Lists optional accessories to customize and enhance Synology NAS functionality.
Provides crucial safety guidelines to prevent harm and product damage.
Lists necessary tools and parts required before starting Synology NAS component installation.
Step-by-step guide on how to install hard drives into the Synology NAS drive trays.
Instructions on how to connect and power on the Synology NAS for the first time.
Guides on installing, checking, or removing memory modules to expand NAS capacity.
Instructions for installing and removing M.2 NVMe SSDs for SSD cache functionality.
Guide on installing a network interface card for expanded LAN port connectivity.
Step-by-step instructions for replacing a malfunctioning cooling fan in the Synology NAS.
Guide on using Web Assistant to install the DiskStation Manager (DSM) operating system.
Information on where to find additional resources and tutorials for the Synology NAS.
Lists the items included in the Synology NAS package for initial setup.
Provides a visual overview of the Synology NAS hardware with numbered components.
Explains different system modes and their corresponding LED indicator statuses.
Illustrates common transitions between various system modes with examples.
Details the color and status meanings for various LED indicators on the NAS.
Lists the technical specifications of the Synology DS1821+ hardware.
Identifies available spare parts for the Synology NAS, such as fans and drive trays.
Lists optional accessories to customize and enhance Synology NAS functionality.
Provides crucial safety guidelines to prevent harm and product damage.
Lists necessary tools and parts required before starting Synology NAS component installation.
Step-by-step guide on how to install hard drives into the Synology NAS drive trays.
Instructions on how to connect and power on the Synology NAS for the first time.
Guides on installing, checking, or removing memory modules to expand NAS capacity.
Instructions for installing and removing M.2 NVMe SSDs for SSD cache functionality.
Guide on installing a network interface card for expanded LAN port connectivity.
Step-by-step instructions for replacing a malfunctioning cooling fan in the Synology NAS.
Guide on using Web Assistant to install the DiskStation Manager (DSM) operating system.
Information on where to find additional resources and tutorials for the Synology NAS.
General| Model | DS1821+ |
|---|---|
| Category | NAS |
| CPU | AMD Ryzen V1500B |
| CPU Architecture | 64-bit |
| CPU Frequency | 2.2 GHz |
| CPU Cores | 4 |
| Hardware Encryption Engine | Yes |
| Memory | 4 GB DDR4 ECC SODIMM |
| Drive Bays | 8 |
| Maximum Drive Bays with Expansion Unit | 18 |
| Compatible Drive Type | 3.5" SATA HDD, 2.5" SATA HDD, 2.5" SATA SSD |
| Hot Swappable Drive | Yes |
| RJ-45 1GbE LAN Port | 4 |
| LAN Ports | 4 |
| PCIe Expansion | 1 x Gen3 x8 slot (x4 link) |
| File System | Btrfs, EXT4 |
| Wake on LAN | Yes |
| Scheduled Power On/Off | Yes |
| Power Supply Unit | 250W |
| AC Input Power Voltage | 100V to 240V AC |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Operating System | DiskStation Manager (DSM) |
| Warranty | 3 years |
| Maximum Memory Capacity | 32 GB |
| Maximum Internal Raw Capacity | 128 TB |
| Maximum Raw Capacity with Expansion Units | 288 TB |
| M.2 SSD Slots | 2 (NVMe) |
| External Ports | 4 x USB 3.2 Gen 1, 2 x eSATA |
| Dimensions | 166 mm x 343 mm x 243 mm |
| System Fan | 120 mm x 120 mm x 2 pcs |
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