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The Synology DS1821+ is equipped with an AMD Ryzen Quad-core 2.2GHz processor, offering robust performance for demanding workloads.
The bundle includes eight Seagate IronWolf 4TB SATA III 3.5" NAS Hard Drives, providing ample storage capacity.
Yes, the DS1821+ supports expansion up to 18 drives using two DX517 expansion units, allowing for increased storage capacity.
The DS1821+ supports 10GbE networking, enabling faster SFP+ or RJ-45 connections to boost existing workflows.
Yes, the DS1821+ fully supports virtualization solutions like VMware vSphere 6 and VAAI integration, enhancing work efficiency.
Review Summary
Accidents happen where life happens. Protect your favorite Adorama products and purchase a protection plan to stay covered from accidental damage, mechanical or electrical failure, and more.
If we can’t fix it, we’ll replace it at no additional cost.
Protect your product from drops, spills, and more.
Enjoy your gear without fear. We have you covered!
When regular use of your product over time results in mechanical or electrical failure.
We will never charge you a deductible after the purchase of a plan.
Our claims process is simple & easy and our customer service team is happy to help.
Adorama Protect powered by Extend is available for purchase to customers in the United States. Not available for purchase Internationally or in U.S. Territories.
Browse our FAQ
AMD Ryzen V1500B
64-bit
4-core 2.2 GHz
Yes
4 GB DDR4 ECC SODIMM
4 GB
2
32 GB (2x 16 GB)
8
18 (2x DX517)
2 (NVMe)
3.5" SATA HDD
2.5" SATA HDD
2.5" SATA SSD
M.2 2280 NVMe SSD
108 TB
Yes
4 (with Link Aggregation / Failover support)
4
2
1x Gen3 x8 Slot (x4 link)
Btrfs
EXT4
Btrfs
EXT4
EXT3
FAT
NTFS
HFS+
exFAT
0 Degree C to 40 Degree C (32 Degree F to 104 Degree F)
-20 Degree C to 60 Degree C (-5 Degree F to 140 Degree F)
5% to 95% RH
FCC
CE
BSMI
EAC
CCC
KC
VCCI
RCM
RoHS Compliant
120 mm x 120 mm x 2 pcs
Full-Speed Mode
Cool Mode
Quiet Mode
Yes
Yes
Yes
22.2 dB(A)
Yes
Yes
250 W
100 V to 240 V AC
50/60 Hz, Single Phase
59.8 W (Access)
26.18 W (HDD Hibernation)
204.05 BTU/hr (Access)
89.33 BTU/hr (HDD Hibernation)
6.5 x 13.5 x 9.5" (166 x 343 x 243mm)
13.2 lbs (6kg)
64
128
256
Yes
Yes
Yes
Synology Hybrid RAID
Basic
JBOD
RAID 0
RAID 1
RAID 5
RAID 6
RAID 10
Basic to RAID 1
Basic to RAID 5
RAID 1 to RAID 5
RAID 5 to RAID 6
Synology Hybrid RAID
RAID 1
RAID 5
RAID 6
RAID 10
Synology Hybrid RAID
JBOD
RAID 5
RAID 6
Synology Hybrid RAID
RAID 1
RAID 5
RAID 6
RAID 10
CIFS/AFP/NFS/FTP/WebDAV
1000
2000 (with RAM expansion)
Yes
Yes
2048
256
512
16
Yes
800
Yes
Yes
Yes
Yes
Yes
SMB1 (CIFS), SMB2, SMB3, NFSv3, NFSv4, NFSv4.1, NFS Kerberized sessions, iSCSI, HTTP, HTTPs, FTP, SNMP, LDAP, CalDAV
Google Chrome
Firefox
Microsoft Edge
Internet Explorer 10 onwards
Safari 10 onwards
Safari (iOS 10 onwards)
Google Chrome (Android 6.0 onwards)
Brazilian Portuguese, Czech, Danish, Dutch, English, French, German, Hungarian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Thai, Traditional Chinese ,Turkish
Yes
Yes
1500
Yes
80
Yes
5 (Licenses required for additional accounts)
150
1,484,000 e-mails per day, approx. 45GB
Yes
Yes
Yes
Yes
Yes
1024
65536
40 (including 2 Free License)
1200 FPS @ 720p (1280x720)
1050 FPS @ 1080p (1920x1080)
600 FPS @ 3M (2048x1536)
440 FPS @ 5M (2591x1944)
320 FPS @ 4K (3840x2160)
1200 FPS @ 720p (1280x720)
1200 FPS @ 1080p (1920x1080)
1120 FPS @ 3M (2048x1536)
600 FPS @ 5M (2591x1944)
480 FPS @ 4K (3840x2160)
1,000,000 (applies to files indexed or hosted by Synology Drive. For file access through other standard protocols, refer to the File Services section above)
550 (the number of connections that can be maintained when the recommended number of hosted files was reached)
1800
Yes
8
8
30
192223257627
Find the ultimate storage solution with the Synology DiskStation DS1821+ 8-Bay NAS Enclosure Bundle, featuring eight Seagate IronWolf 4TB SATA III 3.5" Internal NAS Hard Drives, each spinning at 5400 RPM. This powerful and scalable NAS system is tailored for IT enthusiasts and small to medium-sized businesses seeking robust data management and protection. The DS1821+ offers business-grade backup solutions to safeguard against data loss, while enhanced computational capabilities and throughput ensure faster completion of workloads.
At the heart of this powerhouse is an AMD Ryzen Quad-core 2.2GHz CPU, complemented by dual M.2 2280 slots for NVMe cache acceleration, delivering up to 113K 4K random read IOPS. Expand your storage capacity seamlessly with support for up to 18 drives using two DX517 expansion units. The DS1821+ is engineered to handle demanding applications and multiple concurrent users, providing rapid file indexing, efficient photo organization, and responsive web services.
Enhance your network performance with 10GbE support, allowing for faster SFP+ or RJ-45 networking to boost existing workflows. The DS1821+ also supports ultra-fast NVMe cache, accelerating HDD arrays by 20 times or more. For ultimate file management and sharing, the File Station offers a web-based, secure management tool with easy drag-and-drop operations, advanced search, and filtering tools. It supports a wide range of protocols, including AFP, FTP, iSCSI, NFS, SMB, and WebDAV, ensuring complete compatibility.
The DS1821+ is fully certified for storage virtualization solutions, supporting VMware vSphere 6 and VAAI integration to optimize computation efficiency and offload storage operations. Windows Offloaded Data Transfer (ODX) enhances data transfer and migration rates, while OpenStack Cinder support transforms your NAS into a block-based storage component.
As an ultimate backup solution, the DS1821+ integrates various applications into an intuitive interface, offering durable storage technologies to protect your data across devices. Centralize backup tasks with Active Backup for Business, ensuring fast and reliable restoration. Hyper Backup allows comprehensive data backups to local folders, external devices, other Synology NAS units, rsync servers, or public clouds. Synology Drive Client provides real-time data backups and point-in-time file recovery, while Active Backup for Microsoft 365 and G Suite protects cloud-stored corporate data with centralized management and storage efficiency optimization.
Designed for reliability, the DS1821+ is backed by Synology's three-year hardware warranty, with an optional two-year extension available in select regions. Powered by Synology DSM Central Management System, it enables efficient management of multiple NAS servers from a single interface. Additional features include Synology MailPlus for secure and private email solutions, Synology High Availability for seamless server transitions, and comprehensive security tools to protect against evolving threats. The DS1821+ also supports Synology SSDs, engineered for consistent high performance in 24/7 workloads, and Surveillance Station for intelligent monitoring and recording of your environment.