Synology DS1821+ DiskStation 8-Bay Tower NAS - ACE Peripherals
Synology DS1821+ DiskStation 8-Bay Tower NAS - ACE Peripherals
Synology DS1821+ DiskStation 8-Bay Tower NAS - ACE Peripherals
Synology DS1821+ DiskStation 8-Bay Tower NAS - ACE Peripherals
Synology DS1821+ DiskStation 8-Bay Tower NAS - ACE Peripherals
Synology DS1821+ DiskStation 8-Bay Tower NAS - ACE Peripherals
Synology DS1821+ DiskStation 8-Bay Tower NAS - ACE Peripherals

Synology DS1821+ DiskStation 8-Bay Tower NAS

8-bay DiskStation (up to 18-bay), Quad Core 2.2 GHz, 4GB RAM (up to 32GB), Built-in two M.2 NVMe SSD slots, 10GbE NIC support (optional). High capacity...

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Vendor: Synology
SKU: DS1821+
Barcode: 846504003976
Availability : In Stock Pre order Out of stock

Frequently Bought Together

Total price:$2,090.00 $1,825.00
Description

8-bay DiskStation (up to 18-bay), Quad Core 2.2 GHz, 4GB RAM (up to 32GB), Built-in two M.2 NVMe SSD slots, 10GbE NIC support (optional). 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.

CPU

AMD Ryzen
Quad-core 2.2 GHz

Cache Acceleration

Dual M.2 2280 slots for NVMe Cache

Performance

113K 4K random read IOPS

Scalability

Expand up to 18 drives with two DX517 expansion units 

The performance you need

Reduce transfer times with the DS1821+, designed to accelerate your workloads. Easily add faster networking and NVMe drives to further boost performance.

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.

Fully certified storage virtualization solutions

Synology iSCSI storage fully supports most virtualization solutions to enhance work efficiency with easy management interface. VMware vSphere 6 and VAAI integration helps offload storage operations and optimizes computation efficiency. Windows Offloaded Data Transfer (ODX) speeds up data transfer and migration rate. OpenStack Cinder support turns your Synology NAS into a block-based storage component.

Ultimate Backup Solution

DS1821+ integrates various backup applications into an intuitive user interface, offering durable storage technologies to safeguard your valuable data on any device.

Specs

Hardware Specifications

CPU
CPU Model AMD Ryzen V1500B
CPU Quantity 1
CPU Architecture 64-bit
CPU Frequency 4-core 2.2 GHz
Hardware Encryption Engine (AES-NI)
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)
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*
External Ports
RJ-45 1GbE LAN Port 4 (with Link Aggregation / Failover support)
RJ-45 1GbE LAN Port*  
RJ-45 10GbE LAN Port  
Out-of-Band Management LAN Port  
USB 3.2 Gen 1 Port* 4
eSATA Port 2
Expansion Port  
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
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
Brightness Adjustable Front LED Indicators
Power Recovery
Noise Level* 22.2 dB(A)
Scheduled Power On / Off
Wake on LAN / WAN
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)
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 or Extended Warranty Plus
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. 
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
 

DSM Specifications

Storage Management
Maximum Single Volume Size* 108 TB
Maximum Internal Volume Number 64
M.2 SSD Storage Pool Support*
SSD Read / Write Cache (White Paper)
SSD TRIM
RAID Group  
Supported RAID Type Synology Hybrid RAID
Basic
JBOD
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
RAID Migration Basic to RAID 1
Basic to RAID 5
RAID 1 to RAID 5
RAID 5 to RAID 6
Volume Expansion with Larger HDDs Synology Hybrid RAID
RAID 1
RAID 5
RAID 6
RAID 10
Volume Expansion by Adding a HDD Synology Hybrid RAID
JBOD
RAID 5
RAID 6
Global Hot Spare Supported RAID Type Synology Hybrid RAID
RAID 1
RAID 5
RAID 6
RAID 10
File Services
File Protocol SMB/AFP/NFS/FTP/WebDAV
Maximum Concurrent SMB/AFP/FTP Connections 1,000
Maximum Concurrent SMB/AFP/FTP Connections (with RAM expansion) 2,000
Windows Access Control List (ACL) Integration
NFS Kerberos Authentication
Account & Shared Folder
Maximum Local User Accounts 2,048
Maximum Local Groups 256
Maximum Shared Folder 512
Maximum Shared Folder Sync Tasks 16
Hybrid Share
Maximum Hybrid Share Folders 10
Hyper Backup
Folder and Package Backup
Entire System Backup
High Availability
Synology High Availability
Log Center
Syslog Events per Second 1,000
Virtualization
VMware vSphere with VAAI
Windows Server 2016
Windows Server 2019
Windows Server 2022
Citrix Ready
OpenStack
General Specifications
Networking Protocols SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Supported Browsers Google Chrome
Firefox
Microsoft Edge
Safari
Supported Language English, Deutsch, Français, Italiano, Español, Dansk, Norsk, Svenska, Nederlands, Русский, Polski, Magyar, Português do Brasil, Português Europeu, Türkçe, Český, ภาษาไทย, 日本語, 한국어, 繁體中文, 简体中文

Add-on Packages view the complete package list

Antivirus by McAfee (Trial)
Central Management System
Synology Chat
Maximum Users 1,500
Maximum Number of Concurrent Users 150
Document Viewer
Download Station
Maximum Concurrent Download Tasks 80
SAN Manager
Maximum iSCSI Target Number 128
Maximum LUN 256
LUN Clone/Snapshot, Windows ODX
Synology MailPlus / MailPlus Server  
Free Email Accounts 5 (Licenses required for additional accounts)
Maximum Number of Concurrent Users 150
Maximum Server Performance 1,484,000 emails per day, approx. 45GB
Media Server
DLNA Compliance
Synology Photos
Facial Recognition
Snapshot Replication
Maximum Snapshots per Shared Folder 1,024
Maximum of System Snapshots 65,536
Surveillance Station
Maximum IP cam (Licenses required) 40 (including 2 Free License) (see all supported IP cameras)
Total FPS (H.264) 1200 FPS @ 720p (1280x720)
1050 FPS @ 1080p (1920x1080)
600 FPS @ 3M (2048x1536)
440 FPS @ 5M (2591x1944)
320 FPS @ 4K (3840x2160)
Total FPS (H.265) 1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920x1080)
1120 FPS @ 3M (2048x1536)
600 FPS @ 5M (2591x1944)
480 FPS @ 4K (3840x2160)
Synology Drive
Recommended Number of Concurrent Sync Clients 550 (the number of connections that can be maintained when the recommended number of hosted files was reached)
Recommended Number of Hosted Files 50,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
Synology Office
Maximum Users 1,800
Video Station
Virtual Machine Manager
Recommended Virtual Machine Instances
Recommended Virtual DSM Number (Licenses required) 8 (including 1 Free License)
Notes The specifications vary depending on system configuration and memory size.
VPN Server
Maximum Connections 40