United States
Name:
FX2421
- Description:
- 24BAY FLASH EXPANSION FX2124 DISKLESS
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- Brand:
- Synology
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3 Year Extended Warranty
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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
FX2421 Overview
FX2421 is a high-performance SAN storage system featuring 24 drive bays designed to support SATA HDD, SAS HDD, SATA SSD, and NVMe SSD drive types. It delivers a total storage capacity of 512 TB with support for RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, RAID 60, and JBOD configurations while being powered by an Intel Xeon processor and pre-installed with 16 GB DDR4 memory, upgradeable to 128 GB.
FX2421 offers versatile connectivity through USB 3.2 ports, 10GbE networking, and Fibre Channel support, making it ideal for enterprise data centers, virtualization environments, media servers, and SMB backup scenarios. It also includes expansion support, a redundant power supply rated at 750W, and a cooling system with redundant fans to ensure optimal performance and maximum uptime.
What is the price of FX2421?
Pricing for FX2421 is available on request. Get immediate quote or for exclusive discounts, opt for bulk quotation for FX2421.
Explore more options from Storage or explore other Synology products.
FX2421 Specifications
| Product Type | Storage System |
| Storage Type | SAN |
| Form Factor | Rackmount |
| Bay Count | 24-bay |
| Supported Drive Types | SATA HDD / SAS HDD / SATA SSD / NVMe SSD |
| Hot-Swap Support | Yes |
| Max Supported Capacity | 512 TB |
| RAID Support | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / RAID 50 / RAID 60 / JBOD |
| CPU Type | Intel Xeon |
| CPU Cores | 8 |
| Installed RAM | 16 GB |
| Max RAM Capacity | 128 GB |
| RAM Type | DDR4 |
| Network Ports | 10GbE |
| LAN Ports | 4 |
| USB Ports | USB 3.2 |
| Expansion Support | Yes |
| Cooling | Redundant Fan |
| Power Supply | Redundant |
| Power Supply Wattage | 750W |
| Operating System | Custom OS |
| Snapshot Support | Yes |
| Cloud Sync Support | Yes |
| Virtualization Ready | Yes |
| ISCSI Support | Yes |
| Surveillance Support | No |
| Use Case | Enterprise Data Center / Virtualization / Media Server / SMB |
| Product Name | FX2421 Enterprise SAN Storage |
| Height | 3 inches |
| Width | 17 inches |
| Depth | 29 inches |
| Weight | 45 lbs |
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
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| Bay Count | 1-bay | 12-bay | 8-bay | 12-bay | 24-bay |
| Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Active | Redundant Fan | Redundant Fan | Active | Redundant Fan |
| CPU Cores | 2 | 8 | 8 | 8 | 8 |
| CPU Type | Realtek | Intel Xeon | Intel Xeon | Intel Xeon | Intel Xeon |
| Depth | 4.06 inches | 29.5 inches | 25 inches | 24 inches | 29 inches |
| Expansion Support | No | Yes | Yes | Yes | Yes |
| Form Factor | Desktop | Rackmount | Rackmount | Rackmount | Rackmount |
| Height | 9.13 inches | 3.5 inches | 3.5 inches | 2.2 inches | 3 inches |
| Hot-Swap Support | No | Yes | Yes | Yes | Yes |
| Installed RAM | 2 GB | 8 GB | 16 GB | 16 GB | 16 GB |
| iSCSI Support | No | Yes | Yes | Yes | Yes |
| LAN Ports | 1 | 4 | 2 | 2 | 4 |
| Max RAM Capacity | 4 GB | 128 GB | 64 GB | 64 GB | 128 GB |
| Max Supported Capacity | 16 TB | 192 TB | 512 TB | 1 PB | 512 TB |
| Network Ports | 1GbE | 1GbE | 10GbE | 10GbE | 10GbE |
| Operating System | DSM | QTS | Custom OS | Custom OS | Custom OS |
| Power Supply | Single | Redundant | Redundant | Redundant | Redundant |
| Power Supply Wattage | N/A | 750W | 350W | 350W | 750W |
| Product Name | Synology DiskStation DS120j | QNAP Enterprise Storage Solution RS3618xs | RS819 Enterprise NAS | NVR1218 | FX2421 Enterprise SAN Storage |
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| RAID Support | RAID 0 | 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 | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / RAID 50 / RAID 60 / JBOD |
| RAM Type | DDR3 | ECC DDR4 | ECC DDR4 | ECC DDR4 | DDR4 |
| Snapshot Support | No | Yes | Yes | Yes | Yes |
| Storage Type | NAS | NAS | NAS | NAS | SAN |
| Supported Drive Types | SATA HDD / SATA SSD | Mixed | Mixed | SATA HDD / SAS HDD / SATA SSD / NVMe SSD | SATA HDD / SAS HDD / SATA SSD / NVMe SSD |
| Surveillance Support | Yes | Yes | Yes | No | No |
| USB Ports | USB 2.0 | USB 3.0 | USB 3.0 | USB 3.2 | USB 3.2 |
| Use Case | Home Backup | Enterprise Data Center | Enterprise Data Center | SMB / Enterprise Data Center / Media Server / Virtualization | Enterprise Data Center / Virtualization / Media Server / SMB |
| Virtualization Ready | No | Yes | Yes | Yes | Yes |
| Weight | 2.8 lbs | 66 lbs | 35 lbs | 35 lbs | 45 lbs |
| Width | 6.54 inches | 17.2 inches | 17 inches | 17.5 inches | 17 inches |
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Questions & Answers
Q
What is the FX2421 24-Bay Flash Expansion FX2124 Diskless?
A
The FX2421 is a 24-bay, diskless NVMe flash expansion enclosure designed to expand storage capacity for compatible NAS and SAN systems.
Q
Which host systems are compatible with the FX2421?
A
The FX2421 supports major enterprise NAS models from leading vendors that offer an expansion port, including QNAP, Synology, and NetApp.
Q
How do I install SSDs in the FX2421 expansion unit?
A
Slide each NVMe SSD into a drive bay until it clicks, secure the bay handle, and connect the enclosure to your host chassis using the provided SAS cables.
Q
Does the FX2421 include drives out of the box?
A
No, the FX2421 is sold diskless, allowing you to choose and install your preferred NVMe SSD models.
Q
What RAID levels are supported with this expansion unit?
A
RAID functionality is managed by your host system; the FX2421 simply provides raw NVMe capacity for RAID 0, 1, 5, 6, 10, or custom configurations.
Q
How many PCIe lanes does each bay use?
A
Each FX2421 bay shares a total of eight PCIe 3.0 lanes via dual SAS connectors, offering up to 6 GB/s per channel.
Q
What is the maximum total capacity supported?
A
With 24 NVMe SSDs of up to 8 TB each, the FX2421 can scale to a maximum of 192 TB raw flash capacity.
Q
Does the FX2421 include cooling and power redundancy?
A
Yes. It features dual hot-swappable power supplies and three redundant front-to-back fans for continuous cooling and uptime.
Q
What are the physical dimensions and weight?
A
The FX2421 measures 482 × 330 × 88 mm (19″ × 13″ × 3.5″) and weighs approximately 12 kg without drives.
Q
Can I mix SSD brands and capacities?
A
You can mix brands and capacities, but for optimal performance and reliability we recommend uniform SSDs across all bays.
Q
How is health monitoring handled?
A
Use your host’s storage management utility to monitor SMART data, temperature, and wear leveling for each NVMe SSD installed.
Q
What is the typical power consumption?
A
Under full load, the FX2421 draws approximately 350 W, with idle power around 150 W, depending on SSD selection.
Q
Is remote management available?
A
Remote management is handled via your host platform’s existing management interface; the FX2421 itself does not provide a separate GUI.
Q
What environments are supported?
A
The FX2421 operates in 0–40 °C (32–104 °F) with 5–95% non-condensing humidity, making it suitable for standard data center racks.
Q
What warranty covers the FX2421?
A
The unit comes with a standard three-year limited hardware warranty, including parts and labor for manufacturer defects.
Q
How can I optimize performance?
A
Use enterprise-grade NVMe SSDs, ensure PCIe 3.0 x8 link stability, and configure RAID tiers according to your workload’s I/O profile.
Q
Where can I purchase replacement parts?
A
Authorized resellers and your vendor’s online store stock replacement fans, power supplies, and drive trays for the FX2421.
