Description
DiskStation DS1821+
High capacity storage and data protection for anyone
Designed for scalability and performance
The 8-bay Synology DS1821+ is aimed at IT enthusiast and SMB customers looking for a powerful and scalable storage solution, its business-grade backup solutions keep users safe and protected from potential data loss, while major improvements to compute capabilities and throughput means workloads are finished faster than ever before.
Storage that fits your needs
Make the most of high-performance networking and file access without taking up unnecessary space. DS1821+ comes equipped with 8 bays and can scale up to 18 bays with 2 DX517 expansion units as your data needs grow.5
5 bays 108 TB 15 bays 252 TB
Specifications
CPU |
|
AMD Ryzen V1500B | |
CPU Quantity | 1 |
CPU Architecture | 64-bit |
CPU Frequency | 4-core 2.2 GHz |
Hardware Encryption Engine (AES-NI) | Yes |
Memory |
|
System Memory | 4 GB DDR4 ECC SODIMM |
Memory Module Pre-installed | 4 GB (4 GB x 1) |
Total Memory Slots | 2 |
Maximum Memory Capacity | 32 GB (16 GB x 2) |
Notes | Synology reserves the right to replace memory modules with the same or higher frequency based on supplier's product life cycle status. Rest assured that the compatibility and stability have been strictly verified with the same benchmark to ensure identical performance. |
Please select Synology memory modules for optimum compatibility and reliability. Synology will not provide complete product warranty or technical support if non-Synology memory modules are used for memory expansion. | |
For more information about the recommended memory configurations, please check the Hardware Installation Guide of your Synology product. | |
Storage |
|
Drive Bays | 8 |
Maximum Drive Bays with Expansion Unit | 18 (DX517 x 2) |
M.2 Drive Slots | 2 (NVMe) |
Compatible Drive Type* (See all supported drives) | 3.5" SATA HDD |
2.5" SATA HDD | |
2.5" SATA SSD | |
M.2 2280 NVMe SSD | |
Hot Swappable Drive* | Yes |
Notes | The hot swappable drive feature is not supported by M.2 SSD slots. |
"Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay. | |
External Ports |
|
RJ-45 1GbE LAN Port | 4 (with Link Aggregation / Failover support) |
USB 3.2 Gen 1 Port* | 4 |
eSATA Port | 2 |
Notes | The USB 3.0 standard was renamed to USB 3.2 Gen 1 by the USB Implementers Forum (USB-IF) in 2019. |
PCIe |
|
PCIe Expansion | 1 x Gen3 x8 slot (x4 link) |
File System |
|
Internal Drives | Btrfs |
EXT4 | |
External Drives | Btrfs |
EXT4 | |
EXT3 | |
FAT | |
NTFS | |
HFS+ | |
exFAT | |
Notes | exFAT Access can be installed for free from Package Center in DSM 7.0. In DSM 6.2 or earlier versions, exFAT Access needs to be purchased in Package Center. |
Appearance |
|
Size (Height x Width x Depth) | 166 mm x 343 mm x 243 mm |
Weight | 6 kg |
Others |
|
System Fan | 120 mm x 120 mm x 2 pcs |
Fan Speed Mode | Full-Speed Mode |
Cool Mode | |
Quiet Mode | |
Easy Replacement System Fan | Yes |
Brightness Adjustable Front LED Indicators | Yes |
Power Recovery | Yes |
Noise Level* | 22.2 dB(A) |
Scheduled Power On / Off | Yes |
Wake on LAN / WAN | Yes |
Power Supply Unit / Adapter | 250 W |
AC Input Power Voltage | 100V to 240V AC |
Power Frequency | 50/60 Hz, Single Phase |
Power Consumption | 59.8 W (Access) |
26.18 W (HDD Hibernation) | |
British Thermal Unit | 204.05 BTU/hr (Access) |
89.33 BTU/hr (HDD Hibernation) | |
Notes | Power consumption is measured when it is fully loaded with Western Digital 1TB WD10EFRX hard drive(s). |
Noise Level Testing Environment: Fully loaded with Seagate 2TB ST2000VN000 hard drive(s) in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8% | |
Temperature |
|
Operating Temperature | 0°C to 40°C (32°F to 104°F) |
Storage Temperature | -20°C to 60°C (-5°F to 140°F) |
Relative Humidity | 5% to 95% RH |
Certification |
|
FCC | |
CE | |
BSMI | |
EAC | |
CCC | |
KC | |
VCCI | |
RCM | |
Warranty |
|
3-year hardware warranty, extendable to 5 years with EW201 | |
Notes | Availability varies by region. Before purchasing, please visit the official web pages of EW201/202 and Extended Warranty Plus for a list of eligible regions. |
The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more) | |
Environment |
|
RoHS Compliant | |
Packaging Content | |
Main Unit X 1 | |
Accessory Pack X 1 | |
AC Power Cord X 1 | |
RJ-45 LAN Cable X 2 | |
Quick Installation Guide X 1 | |
Optional Accessories |
|
DDR4 ECC SODIMM: D4ES01-4G/D4ES01-8G/D4ECSO-2666-16G | |
Expansion Units: DX517 | |
3.5" SATA HDD: HAT5300/HAT3300 | |
2.5" SATA SSD: SAT5210 | |
M.2 2280 NVMe SSD: SNV3410 | |
25GbE Network Interface Card: E25G21-F2 | |
10GbE Network Interface Card: E10G21-F2/E10G18-T2/E10G18-T1 | |
Surveillance Device License Pack |
Payment & Security
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.