United States
Name:
DS420J
- Description:
- DiskStation DS420J - NAS - Compact - Realtek - RTD1296 - Black
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3 Year Extended Warranty
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14-Day Money Back Guarantee
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Same-day Shipping
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
DS420J Overview
DS420J is a cost‐effective NAS solution featuring 4 drive bays that support both SATA HDD and SATA SSD types. It delivers a total storage capacity of up to 64 TB and offers flexible RAID options including RAID 0, RAID 1, RAID 5, RAID 10, and JBOD for data protection and performance. Powered by a Realtek quad‐core processor and equipped with 1 GB DDR4 memory, DS420J ensures reliable everyday operations without any unnecessary frills.
DS420J comes with a Gigabit Ethernet interface and two USB 3.0 ports, making it an ideal choice for home backup, SMB environments, media serving, and surveillance applications. The system features active cooling, a single non-redundant power supply, and hot-swap drive bays to maximize uptime and accessibility in small office or home settings.
What is the price of DS420J?
Pricing for DS420J is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for DS420J.
Explore more options from Storage or explore other Synology products.
DS420J Specifications
| Product Type | Storage System |
| Storage Type | NAS |
| Form Factor | Desktop |
| Bay Count | 4-bay |
| Supported Drive Types | SATA HDD / SATA SSD |
| Hot-Swap Support | Yes |
| Max Supported Capacity | 64 TB |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 10 / JBOD |
| CPU Type | Realtek |
| CPU Cores | 4 |
| Installed RAM | 1 GB |
| Max RAM Capacity | 1 GB |
| RAM Type | DDR4 |
| Network Ports | 1GbE |
| LAN Ports | 1 |
| USB Ports | USB 3.0 |
| Expansion Support | No |
| Cooling | Active |
| Power Supply | Single |
| Power Supply Wattage | N/A |
| Operating System | DSM |
| Snapshot Support | No |
| Cloud Sync Support | Yes |
| Virtualization Ready | No |
| ISCSI Support | Yes |
| Surveillance Support | Yes |
| Use Case | Home Backup |
| Product Name | Synology DiskStation DS420J |
| Height | 9.13 inches |
| Width | 4.17 inches |
| Depth | 6.54 inches |
| Weight | 4.8 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Bay Count | 4-bay | 4-bay | 24-bay | 12-bay | 12-bay |
| Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Active | Active | Redundant Fan | Active | Redundant Fan |
| CPU Cores | 4 | 4 | 8 | 8 | 8 |
| CPU Type | Realtek | Realtek | Intel Xeon | Intel Xeon | Intel Xeon |
| Depth | 8.8 inches | 6.54 inches | 29 inches | 28 inches | 28 inches |
| Expansion Support | No | No | Yes | Yes | Yes |
| Form Factor | Desktop | Desktop | Rackmount | Rackmount | Rackmount |
| Height | 9.1 inches | 9.13 inches | 3.5 inches | 4 inches | 3.5 inches |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Installed RAM | 2 GB | 1 GB | 16 GB | 16 GB | 16 GB |
| iSCSI Support | Yes | Yes | Yes | Yes | Yes |
| LAN Ports | 2 | 1 | 2 | 4 | 4 |
| Max RAM Capacity | 2 GB | 1 GB | 64 GB | 128 GB | 64 GB |
| Max Supported Capacity | 64 TB | 64 TB | 256 TB | 512 TB | 512 TB |
| Network Ports | 1GbE | 1GbE | 10GbE | 10GbE | 10GbE |
| Operating System | DSM | DSM | QTS | Custom OS | Custom OS |
| Power Supply | Single | Single | Redundant | Redundant | Redundant |
| Power Supply Wattage | N/A | N/A | 750W | 500W | 350W |
| Product Name | Synology DiskStation DS418 | Synology DiskStation DS420J | QNAP Enterprise Storage Server RS3621RPXS | DX517 | RXD1219SAS Enterprise Storage Array |
| 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 10 / JBOD | 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 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 |
| RAM Type | DDR4 | DDR4 | ECC DDR4 | ECC DDR4 | ECC DDR4 |
| Snapshot Support | Yes | No | Yes | Yes | Yes |
| Storage Type | NAS | NAS | SAN | SAN | SAN |
| Supported Drive Types | SATA HDD / SATA SSD | SATA HDD / SATA SSD | Mixed | Mixed | Mixed |
| Surveillance Support | Yes | Yes | Yes | No | No |
| USB Ports | USB 3.0 | USB 3.0 | USB 3.2 | USB 3.2 | USB 3.0 |
| Use Case | SMB / Media Server / Virtualization | Home Backup | Enterprise Data Center | Enterprise Data Center | Enterprise Data Center |
| Virtualization Ready | Yes | No | Yes | Yes | Yes |
| Weight | 4.5 lbs | 4.8 lbs | 70 lbs | 50 lbs | 45 lbs |
| Width | 6.5 inches | 4.17 inches | 19 inches | 17 inches | 17 inches |
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Questions & Answers
Q
What are the key features of the Synology DiskStation DS420J?
A
The DS420J is a 4-bay compact NAS powered by a quad-core Realtek RTD1296 CPU with 1 GB DDR4 memory, offering centralized file storage, multimedia management, and secure remote access via Synology DiskStation Manager (DSM).
Q
How many drives does the DS420J support and what types?
A
It supports up to four 3.5" or 2.5" SATA HDDs/SSDs, enabling a maximum raw capacity of 64 TB (16 TB per drive).
Q
What CPU and memory does the DS420J have?
A
The DS420J features a quad-core Realtek RTD1296 1.4 GHz processor and 1 GB of non-expandable DDR4 memory for efficient multitasking.
Q
What performance can I expect from the DS420J?
A
In RAID 5 with optimized network settings, the DS420J delivers up to 225 MB/s sequential read and write speeds.
Q
Is the DS420J compatible with both HDDs and SSDs?
A
Yes. It supports both 3.5" and 2.5" SATA HDDs and SSDs for flexible storage configurations and tiered performance.
Q
What RAID configurations are supported by the DS420J?
A
The DS420J supports RAID 0, 1, 5, 6, 10, BASIC, JBOD, and Synology Hybrid RAID (SHR) to balance performance and data protection.
Q
How energy efficient is the DS420J?
A
It consumes as low as 17.13 W during active use and 6.84 W in HDD hibernation, delivering reliable performance with minimal power draw.
Q
Does the DS420J run Synology DiskStation Manager (DSM)?
A
Yes. The DS420J comes preinstalled with DSM, Synology’s intuitive web-based OS, offering package management, updates, and a secure interface.
Q
Can I access my files on the DS420J remotely?
A
Yes. DSM’s QuickConnect and Synology DDNS services enable secure remote access to your files and applications from any Internet-connected device.
Q
What backup solutions are available on the DS420J?
A
It includes Hyper Backup for multi-version local and cloud backups, Active Backup for Business, and Cloud Sync for real-time data replication.
Q
Does the DS420J support multimedia streaming?
A
Yes. It supports DLNA, Plex®, and Synology Video Station for streaming photos, music, and videos to smart TVs, computers, and mobile devices.
Q
Is there a Synology mobile app for the DS420J?
A
Yes. DS file, DS video, DS audio, and DS photo apps on iOS and Android let you manage files and stream media on the go.
Q
How secure is data on the DS420J?
A
The DS420J offers AES 256-bit encryption, two-step verification, IP blocking, auto-block against brute-force attacks, and malware protection.
Q
What warranty and support options are available for the DS420J?
A
Synology provides a two-year limited warranty with an optional extension up to five years, plus access to online resources and dedicated technical support.
Q
How easy is it to install the DS420J?
A
Installation is tool-free: insert drives, connect LAN and power cables, then launch the web assistant to install DSM within minutes.
Q
Can I expand the storage or memory of the DS420J later?
A
Memory is fixed at 1 GB DDR4, but storage can be expanded by replacing drives with higher-capacity units or attaching external USB drives via two USB 3.0 ports.
