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Product Details
Synology DiskStation DS420+ SAN/NAS Storage System - Intel Celeron J4025 Dual-core (2 Core) 2 GHz - 4 x HDD Supported - 0 x HDD Installed - 4 x SSD Supported - 0 x SSD Installed - 2 GB RAM DDR4 SDRAM - Serial ATA Controller - RAID Supported 0, 1, 5, 6, 10, Basic, Hybrid RAID, JBOD - 4 x Total Bays - 4 x 2.5"/3.5" Bay - Gigabit Ethernet - 2 USB Port(s) - 2 USB 3.0 Port(s) - Network (RJ-45) - DiskStation Manager - iSCSI, SMB, AFP, NFS, FTP, WEBDAV, CalDAV, Telnet, SSH, SNMP, PPTP, ... - Deskt DISKLESS
High Performance NAS with SSD Cache Acceleration Capability
Synology DiskStation DS420+ is a network-attached storage solution for smooth data sharing, video streaming, and photo indexing. Two built-in M.2 SSD slots and Synology SSD Cache technology allow you to boost system I/O and application performance.
Streamline Your Data Management Experience
DS420+ is a powerful 4-bay desktop NAS that brings you a fast and smooth data management experience, as well as over 226 MB/ssequential read and 225 MB/s sequential write throughput. It benefits computing-intensive applications, speeding up Synology Drive and Moments by an average 15%, and boosting Web PHP response efficiency by about 95% compared to its predecessor, for simple and efficient data management.
DS420+ comes with two built-in M.2 SSD slots that support Synology SSD Cache technology, allowing you to reduce random I/O response time 20 times compared with spinning drives without occupying front drive bays.
Establish a Strong Storage Foundation with Btrfs
DS420+ features a Btrfs file system optimized by Synology to offer you high reliability and high performance. Btrfs supports advanced storage technologies that meet the needs of modern business:
- Advanced snapshot technology provides schedulable and near-instantaneous data protection of shared folders and LUNs.
- File and folder level data restoration offers users who wish to restore only a specific file or folder more flexibility.
- Flexible Shared Folders and User Quota System provide comprehensive quota control on all user accounts and shared folders.
- File self-healing allows Btrfs file systems to auto-detect corrupted files using mirrored metadata and to recover broken data using RAID configurations.
- Inline compression compresses data before writing them to the drive, to optimize storage use and reduce write commands to the drives.
Powerful Backup Tools
DS420+ offers users a range of backup solutions for cloud and physical, on-premises environments. Backing up and restoring data is effortless - and completely free of licenses on compatible NAS models.
- Back up your cloud data: Cloud Sync enables users to seamlessly back up or synchronize data between a local Synology NAS and other cloud services.
- Back up your PCs and servers: Synology Drive Client backs up your Windows®, Mac®, and Linux® desktop devices to safeguard important computer files.
- Back up your Synology NAS: Hyper Backup offers a wide range of destinations for backups of your NAS, including on-premises and cloud.
Your Personal Multimedia Library
DS420+ helps you easily manage multimedia content and share it across Windows®, macOS®, and Linux® platforms.
- Video Station helps you organize your personal digital video library using different data and criteria. Streaming videos to Apple TV, Android TV, Samsung TV, Chromecast and mobile apps is a breeze, and a wide range of digital devices are supported.
- Audio Station provides music playback via AirPlay® devices, and comes with lossless audio format support and Internet radio. Using the Alexa Audio Station feature, you can call out your music to your Voice Assistant.
| Country of Origin | Taiwan |
| Operating System | DiskStation Manager |
| Number of Total Expansion Bays | 4 |
| Number of 2.5"/3.5" Bays | 4 |
| Standard Memory | 2 GB |
| Memory Technology | DDR4 SDRAM |
| Ethernet Technology | Gigabit Ethernet |
| Gigabit Ethernet |
| Protocols | AFP |
| CalDAV | |
| FTP | |
| HTTPS | |
| IMAP | |
| IPSec | |
| iSCSI | |
| L2TP | |
| LDAP | |
| NFS | |
| POP3 | |
| PPTP | |
| SFTP | |
| SMB | |
| SMTP | |
| SNMP | |
| SSH | |
| SSL/TLS | |
| TCP | |
| Telnet | |
| TFTP | |
| WEBDAV |
| RAID Levels | 0, 1, 5, 6, 10, Basic, Hybrid RAID, JBOD |
| Controller Type | Serial ATA |
| RAID Supported | Yes |
| Number of Network (RJ-45) Ports | 2 |
| Network (RJ-45) | Yes |
| Total Number of USB Ports | 2 |
| Number of USB 3.0 Ports | 2 |
| Number of Hard Drives Supported | 4 |
| Number of Hard Drives Installed | 0 |
| Number of Solid State Drive Supported | 4 |
| Number of Solid State Drive Installed | 0 |
| Weight (Approximate) | 4.81 lb |
| Form Factor | Desktop |
| Height | 6.5" |
| Width | 7.8" |
| Depth | 8.8" |
| Processor Speed | 2 GHz |
| Processor Type | Celeron |
| Processor Model | J4025 |
| Processor Core | Dual-core (2 Core) |
| Processor Manufacturer | Intel |
| Product Type | SAN/NAS Storage System |
| Manufacturer Website Address | http://www.synology.com |
| Packaged Quantity | 1 |
| Manufacturer | Synology, Inc |
| Product Model | DS420+ |
| Product Name | DiskStation DS420+ SAN/NAS Storage System |
| Product Line | DiskStation |
| Product Series | Plus |
| Brand Name | Synology |
Shipping & Return
Return Policy
You need to have a Return Authorization (RA) number before returning any products to HSSL Technologies.
For a hard copy of this form and a shipping label, please include your request in the form below.
You can also request an RA online by submitting an RA Request via email. Once you have provided HSSL Technologies with the appropriate information, we will contact you with an assigned RA number.
Defective or DOA Products
DOA or defective products are returned for REPLACEMENT ONLY with the same product/model. Deviations from this policy may result in a 20% Returns Processing Service Charge.
- Defective products must be in the original factory carton with all original packing materials.
- The Return Authorization number must be on the shipping label, not the carton. Please do not write on the carton.
- Returns must be shipped freight prepaid. Products received freight collect, without an RA number, or not approved for return will be refused.
- Return Authorization numbers are valid for fourteen (14) days only. Products returned after expiration will be refused.
- HSSL credits are based on the purchase price or current price, whichever is lower.
General Return Terms
You may return most new, unopened items within 30 days of delivery for a full refund. We will also pay return shipping costs if the return is a result of our error (e.g., you received an incorrect or defective item).
You should expect to receive your refund within approximately six weeks of giving your package to the return shipper. This period includes:
- 5–10 business days for us to receive your return from the shipper
- 3–5 business days for us to process your return
- 5–10 business days for your bank to process the refund
If you need to return an item, please Contact Us with your order number and product details. We will respond quickly with instructions for returning items from your order.
Shipping Policy
We can ship to virtually any address in the world. Note that there are restrictions on some products, and certain products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates based on the availability of your items and the shipping options you select. Depending on the provider, estimated shipping dates may appear on the shipping quotes page.
Please also note that shipping rates for many items are weight-based. The weight of each item can be found on its product detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
Has my order shipped?
Click the "My Account" link at the top right hand side of our site to check your orders status.
How do I change quantities or cancel an item in my order?
Click the "My Account" link at the top right hand side of our site to view orders you have placed. Then click the "Change quantities / cancel orders" link to find and edit your order. Please note that once an order has begun processing or has shipped, the order is no longer editable.
How do I track my order?
Click the "My Account" link at the top right hand side of our site to track your order.
My order never arrived.
Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.
An item is missing from my shipment.
Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.
My product is missing parts.
Click the "My Account" link at the top right hand side of our site to track your order status. Be sure that all of the items in your order have shipped already. If you order displays your Package Tracking Numbers, check with the shipper to confirm that your packages were delivered. If your packages each show a status of "delivered", please contact customer service for assistance.
When will my backorder arrive?
Backordered items are those which our suppliers are unable to predict when they will have more in stock, but as soon as they do, we will be able to ship the item to you.
Warranty
Why Choose HSSL?
We connect businesses with the right technology solutions to power growth, security, and efficiency.

Expertise
Backed by years of industry knowledge, our specialists understand the challenges modern businesses face.

Partnerships
We collaborate with top-tier technology providers to bring you innovative & high-performance products.

End-to-End Support
Our dedicated support ensures your systems stay optimized, secure, and ready for what’s next.

Scalable Solutions
Our adaptive approach ensures your IT infrastructure evolves seamlessly as your business expands.
Expert in IT & Security Solutions
At HSSL, we specialize in delivering cutting-edge IT infrastructure, cloud, and cybersecurity services that empower businesses to thrive in a digital-first world. Our trusted professionals provide reliable insights on:
-
Digital Transformation Strategy
Empowering businesses to adapt and grow through modern, secure, and scalable digital infrastructure.
-
Advanced Cybersecurity
Protecting your organization from digital threats with proactive monitoring and smart security frameworks.
-
Cloud & Infrastructure Management
Optimizing cloud performance and IT operations for seamless scalability and improved business agility.
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Data Backup & Recovery
Ensuring business continuity through secure data management, automated backups, and rapid recovery solutions.
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Network & Endpoint Solutions
Delivering secure, high-performance networking systems that keep your business connected and efficient.
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Technology Consulting
Guiding organizations toward smarter IT investments and solutions that align with their long-term goals.
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