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Name:
DS1821+
- Description:
- 8BAY DISKSTATION DS1821+ DISKLESS
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3 Year Extended Warranty
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14-Day Money Back Guarantee
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Express Delivery Across the USA
Need it fast? Choose Express Shipping and receive your order within 1–3 business days.
Free Ground Shipping Available
Standard ground delivery across the U.S. takes 2–6 days, depending on your location — no extra charge.
International Shipments Made Simple
For all international orders, we ship via your UPS, FedEx, or DHL account — or to your U.S.-based freight forwarder.
Delivery Timelines
Under 100 KG? Ships Express.
Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
Over 100 KG? Ships via Freight.
Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
Our best-in-class warranties
3-Year Extended Warranty
Extended protection, enterprise-grade.
All enterprise hardware is backed by a 3-year warranty — triple the industry standard — covering defects under normal use.
Professional repairs & replacements.
If a hardware issue is confirmed, we’ll repair or replace the unit. Replacement parts carry either original or 3-month coverage.
RMA process, simplified.
Once an RMA is approved, return the defective unit within 10 days. We handle the rest — no service gaps.
Service Boundaries & Exclusions
What’s covered — and what’s best avoided.
Your warranty covers defects under normal use. For continued protection, avoid accidental damage, unauthorized repairs, third-party parts, or extreme environments.
Know your location’s service type.
In some regions, return-to-factory or remote service may apply. On-site service depends on infrastructure availability.
Minimal documentation required.
To initiate service, just submit the invoice and warranty card — no red tape, no waiting.
14-Day Money Back Guarantee
Free 14-Day Returns
Tested it, but it’s not a fit?
Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
TRUSTED, TRIED, PROVEN
DS1821+ Overview
DS1821+ is a NAS storage system engineered with 8 drive bays that support both SATA HDD and SATA SSD drive types, enabling maximum storage capacities of up to 192 TB when populated with high‐capacity drives. Built for performance and reliability, it supports multiple RAID levels including RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, and JBOD, making it ideal for mission‐critical use cases such as SMB backup, enterprise data centers, virtualization, and media serving.
DS1821+ is powered by an AMD Ryzen quad‐core processor complemented by 4 GB of pre‐installed DDR4 ECC memory, which is expandable up to 32 GB, ensuring smooth multitasking and data processing. Its connectivity options include four 1GbE LAN ports and USB 3.2 ports, while expansion support, active cooling, a single 250W power supply, and hot‐swap drive bays further contribute to its robust design and high availability, perfectly suiting modern IT and storage environments.
What is the price of DS1821+?
Pricing for DS1821+ is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for DS1821+.
Explore more options from Storage or explore other Synology products.
DS1821+ Specifications
| Product Type | Storage System |
| Storage Type | NAS |
| Form Factor | Desktop |
| Bay Count | 8-bay |
| Supported Drive Types | SATA HDD / SATA SSD |
| Hot-Swap Support | Yes |
| Max Supported Capacity | 192 TB |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / JBOD |
| CPU Type | AMD Ryzen |
| CPU Cores | 4 |
| Installed RAM | 4 GB |
| Max RAM Capacity | 32 GB |
| RAM Type | DDR4 |
| Network Ports | 1GbE |
| LAN Ports | 4 |
| USB Ports | USB 3.2 |
| Expansion Support | Yes |
| Cooling | Active |
| Power Supply | Single |
| Power Supply Wattage | 250W |
| Operating System | QTS |
| Snapshot Support | Yes |
| Cloud Sync Support | Yes |
| Virtualization Ready | Yes |
| ISCSI Support | Yes |
| Surveillance Support | Yes |
| Use Case | SMB |
| Product Name | DS1821+ |
| Height | 9.8 inches |
| Width | 17.5 inches |
| Depth | 10.2 inches |
| Weight | 21.6 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Bay Count | 8-bay | 16-bay | 16-bay | 24-bay | 12-bay |
| Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Active | Redundant Fan | Redundant Fan | Redundant Fan | Redundant Fan |
| CPU Cores | 4 | 8 | 8 | 8 | 8 |
| CPU Type | AMD Ryzen | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon |
| Depth | 10.2 inches | 28 inches | 28.7 inches | 25.6 inches | 28 inches |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Form Factor | Desktop | Rackmount | Rackmount | Rackmount | Rackmount |
| Height | 9.8 inches | 3.5 inches | 3.5 inches | 3.5 inches | 4 inches |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Installed RAM | 4 GB | 16 GB | 16 GB | 8 GB | 16 GB |
| iSCSI Support | Yes | Yes | Yes | Yes | Yes |
| LAN Ports | 4 | 4 | 2 | 4 | 2 |
| Max RAM Capacity | 32 GB | 128 GB | 128 GB | 128 GB | 64 GB |
| Max Supported Capacity | 192 TB | 512 TB | 512 TB | 512 TB | 1 PB |
| Network Ports | 1GbE | 10GbE | 10GbE | 1GbE | 10GbE |
| Operating System | QTS | Custom OS | Custom OS | Custom OS | Custom OS |
| Power Supply | Single | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | 250W | 750W | 500W | 500W | 500W |
| Product Name | DS1821+ | RX418 Enterprise NAS | VS360HD Storage System | QNAP RS2418+ | RX1216SAS |
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / JBOD | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / RAID 50 / RAID 60 / JBOD | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 |
| RAM Type | DDR4 | ECC DDR4 | ECC DDR4 | ECC DDR4 | DDR4 |
| Snapshot Support | Yes | Yes | Yes | Yes | Yes |
| Storage Type | NAS | NAS | NAS | NAS | SAN |
| Supported Drive Types | SATA HDD / SATA SSD | Mixed | Mixed | Mixed | Mixed |
| Surveillance Support | Yes | No | No | No | No |
| USB Ports | USB 3.2 | USB 3.2 | USB 3.2 | USB 3.2 | USB 3.0 |
| Use Case | SMB | Enterprise Data Center | Enterprise Data Center | Enterprise Data Center | Enterprise Data Center |
| Virtualization Ready | Yes | Yes | Yes | Yes | Yes |
| Weight | 21.6 lbs | 25 lbs | 35 lbs | 70 lbs | 35 lbs |
| Width | 17.5 inches | 17.5 inches | 17.3 inches | 17.3 inches | 17 inches |
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Questions & Answers
Q
What key features does the Synology DS1821+ offer?
A
The Synology DS1821+ is an 8-bay NAS powered by a quad-core AMD Ryzen CPU, expandable up to 32 GB ECC DDR4, with dual 10GbE SFP+ ports, four M.2 NVMe slots for SSD cache, and hot-swappable drive bays.
Q
Is the DS1821+ diskless, and what drives are compatible?
A
Yes, the DS1821+ ships diskless and supports 3.5″ SATA HDDs and 2.5″ SATA SSDs, including NAS-rated models and SSD caching in M.2 2280 form factor slots.
Q
How much RAM can I install in the DS1821+?
A
The DS1821+ has two DDR4 ECC SODIMM slots supporting up to 32 GB (2×16 GB) of memory to ensure data integrity and optimal performance.
Q
Can I upgrade network speeds on the DS1821+?
A
Yes, the DS1821+ includes two built-in 10GbE SFP+ ports and one PCIe 3.0 slot for additional 10GbE or 25GbE network cards for high-speed connectivity.
Q
What RAID configurations are supported by the DS1821+?
A
The DS1821+ supports RAID 0, 1, 5, 6, 10, Synology Hybrid RAID (SHR), and SHR-2, allowing flexible data protection and storage efficiency.
Q
Can I use the DS1821+ for virtualization?
A
Absolutely. The DS1821+ is VMware, Citrix, and Microsoft Hyper-V compatible, offering iSCSI and NFS support for virtual machine storage.
Q
Does the DS1821+ support SSD caching and NVMe slots?
A
Yes, the DS1821+ features four built-in M.2 2280 NVMe slots for SSD caching, boosting random I/O performance without occupying drive bays.
Q
What backup solutions are available for the DS1821+?
A
The Synology DS1821+ integrates Hyper Backup, Snapshot Replication, and Active Backup Suite, providing multi-version backups, instant recovery, and cross-platform protection.
Q
How energy-efficient is the DS1821+?
A
The DS1821+ consumes just 28.42 W (access) and 9.98 W (HDD hibernation), featuring 80 PLUS Bronze PSUs and a 92 mm PWM fan for low power and quiet operation.
Q
What operating system runs on the DS1821+?
A
The DS1821+ runs Synology DiskStation Manager (DSM), an intuitive web-based OS with comprehensive file management, security, and application ecosystem.
Q
Can I expand storage capacity on the DS1821+?
A
Yes, you can add up to two DX517 expansion units, increasing total bays to 18 and scaling raw capacity seamlessly without downtime.
Q
Is the DS1821+ suitable for surveillance applications?
A
Yes, it supports Synology Surveillance Station with up to 40 licensed camera channels and real-time monitoring, recording, and management.
Q
What security features does the DS1821+ offer?
A
The DS1821+ includes AES-Ni hardware encryption, firewall, auto block, Security Advisor, and 2-factor authentication to safeguard your data.
Q
How reliable is the DS1821+ for 24/7 operation?
A
Built with ECC memory support, redundant network options, and user-replaceable fans and power supplies, the DS1821+ is engineered for continuous enterprise-grade reliability.
Q
What warranty and support come with the DS1821+?
A
Synology provides a 3-year limited warranty with optional 2-year extension, plus access to 24/7 online support and firmware updates via DSM.
Q
How do I set up the Synology DS1821+ for the first time?
A
Install drives, power on, connect LAN, then use Synology Assistant or visit find.synology.com to launch DSM QuickConnect for guided setup.
