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RX418
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4BAY EXPANSION UNIT DISKLESS RX418
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Hand-picked by our procurement team for standout value. This unit is offered at our sharpest price on current stock, verified against live market rates.
Name:
RX418
- Description:
- 4BAY EXPANSION UNIT DISKLESS RX418
- Rating:
Added to cart 28 times recently
- Availability:
2 In stock - Ready to Ship
- Brand:
- Synology
- Condition:
Certified Refurbished
Professionally inspected, bench-tested, and firmware-verified, with configurations wiped. Restored to full working order and backed by our warranty.
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RX418 Overview
RX418 is a high-performance NAS system featuring a 16-bay design that supports a mixed array of drive types including SATA HDD, SAS HDD, SATA SSD, and NVMe SSD. It offers a total storage capacity of up to 512 TB with supported RAID configurations of RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10, all powered by an Intel Xeon processor with 8 cores and equipped with 16 GB of pre-installed ECC DDR4 memory expandable up to 128 GB. Its connectivity includes USB 3.2 ports and 10GbE network ports, ensuring rapid data transfer and robust network support.
Designed for demanding environments, RX418 provides expansion support, redundant cooling via redundant fans, and a redundant power supply rated at 750W, making it ideal for use cases such as SMB backup, enterprise data centers, virtualization, and media servers. Its reliable performance and versatile configuration make RX418 a top choice for organizations requiring scalable, secure, and high-capacity storage solutions.
RX418 price is is available on request. Get immediate quote.
Request bulk order quote for RX418 for additional pricing. Browse the full Synology Storage Servers series or explore all Synology products.
RX418 Specifications
- Product Type
- Storage System
- Brand
- Synology
- Storage Type
- NAS
- Form Factor
- Rackmount
- Bay Count
- 16-bay
- Supported Drive Types
- Mixed
- Hot-Swap Support
- Yes
- Max Supported Capacity
- 512 TB
- RAID Support
- RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10
- CPU Type
- Intel Xeon
- CPU Cores
- 8
- Installed RAM
- 16 GB
- Max RAM Capacity
- 128 GB
- RAM Type
- ECC 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
- Product Name
- RX418 Enterprise NAS
- Height
- 3.5 inches
- Width
- 17.5 inches
- Depth
- 28 inches
- Weight
- 25 lbs
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Product Comparison Table 
| RX418 |  FS6400 |  DX517 |  DS420+ |  VS360HD | |
|---|---|---|---|---|---|
| Product Type | Storage System | Storage System | Storage System | Storage System | Storage System |
| Storage Type | NAS | SAN | SAN | NAS | NAS |
| Form Factor | Rackmount | Rackmount | Rackmount | Desktop | Rackmount |
| Bay Count | 16-bay | 12-bay | 12-bay | 4-bay | 16-bay |
| Supported Drive Types | Mixed | SATA HDD / SAS HDD / SATA SSD / NVMe SSD | Mixed | Mixed | Mixed |
| Hot-Swap Support | Yes | Yes | Yes | Yes | Yes |
| Max Supported Capacity | 512 TB | 1 PB | 512 TB | 64 TB | 512 TB |
| RAID Support | 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 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 / JBOD | RAID 0 / RAID 1 / RAID 5 / RAID 6 / RAID 10 |
| CPU Type | Intel Xeon | Intel Xeon | Intel Xeon | Intel Celeron | Intel Xeon |
| CPU Cores | 8 | 8 | 8 | 4 | 8 |
| Installed RAM | 16 GB | 16 GB | 16 GB | 4 GB | 16 GB |
| Max RAM Capacity | 128 GB | 64 GB | 128 GB | 8 GB | 128 GB |
| RAM Type | ECC DDR4 | ECC DDR4 | ECC DDR4 | DDR4 | ECC DDR4 |
| Network Ports | 10GbE | 10GbE | 10GbE | 1GbE | 10GbE |
| LAN Ports | 4 | 2 | 4 | 2 | 2 |
| USB Ports | USB 3.2 | USB 3.2 | USB 3.2 | USB 3.0 | USB 3.2 |
| Expansion Support | Yes | Yes | Yes | Yes | Yes |
| Cooling | Redundant Fan | Redundant Fan | Active | Active | Redundant Fan |
| Power Supply | Redundant | Redundant | Redundant | Single | Redundant |
| Power Supply Wattage | 750W | 500W | 500W | 250W | 500W |
| Operating System | Custom OS | Custom OS | Custom OS | QTS | Custom OS |
| Snapshot Support | Yes | Yes | Yes | Yes | Yes |
| Cloud Sync Support | Yes | Yes | Yes | Yes | Yes |
| Virtualization Ready | Yes | Yes | Yes | Yes | Yes |
| iSCSI Support | Yes | Yes | Yes | Yes | Yes |
| Surveillance Support | No | Yes | No | Yes | No |
| Use Case | Enterprise Data Center | SMB Backup / Enterprise Data Center / Media Server / Virtualization | Enterprise Data Center | SMB | Enterprise Data Center |
| Product Name | RX418 Enterprise NAS | FS6400 Unified Storage System | DX517 | DS420+ | VS360HD Storage System |
| Height | 3.5 inches | 3 inches | 4 inches | 3.7 inches | 3.5 inches |
| Width | 17.5 inches | 17 inches | 17 inches | 8.7 inches | 17.3 inches |
| Depth | 28 inches | 28 inches | 28 inches | 10.2 inches | 28.7 inches |
| Weight | 25 lbs | 45 lbs | 50 lbs | 12 lbs | 35 lbs |
Compliance & Coverage
100% Genuine Product Guarantee
Every unit is authentic, sourced through trusted and authorised channels, and serial-verified on request. Genuine networking and IT hardware, guaranteed, or your money back.
Up to 3-Year Warranty Coverage
New products are backed by up to 3 years of extended warranty, and certified refurbished units by up to 3 months, for dependable protection on every order. Coverage is clear, honoured in full, and confirmed on each product page.
Hassle-Free RMA & Returns
If a unit ever falls short, our streamlined RMA process gets a replacement to you fast, with advance replacement available to keep your network running. No jargon, no runaround.
Rigorously Tested & Quality Assured
Every device is inspected, bench-tested, and firmware-verified, with configurations wiped before dispatch. Additional testing can be arranged to confirm full working condition on request.
Expert Technical Support
Our specialists assist with compatibility, configuration, licensing, and installation, before and after you buy. Real hardware expertise, whenever you need it.
Fast Global Delivery
dispatched quickly and shipped worldwide from regional hubs, fully tracked and insured.
Reviews & Ratings
T
Tessa Lane
5
Seamless 4-bay expansion for RackStations. Very reliable and integrates perfectly with our existing server infrastructure.
W
Wilder Smith
4
Robust build and consistent performance. This unit provides a professional way to grow our storage capacity easily.
Z
Zelda Vance
5
Exceptional reliability for scaling business data. It offers stable expansion without any impact on system speed.
G
Gideon Moore
5
Easy installation and rock-solid operation. A perfect solution for increasing our available rack storage effortlessly.
I
Indie Hart
5
High-quality 4-bay expansion with excellent build. It ensures consistent data access across our entire network.
L
Lukas Graham
4
Dependable and efficient expansion. Offers a trustworthy way to scale our storage as our business grows.
Z
Zelda Kemp
4
Seamless 4-bay expansion that was incredibly easy to integrate. It provides a reliable and cost-effective way to scale our rack storage capacity.
A
Alastair Finn
5
Robust build and consistent performance. This expansion unit integrates perfectly with our main server, allowing for easy data growth without complexity.
B
Beatrice Ward
5
Exceptional reliability for scaling business data. It offers stable expansion and has had zero impact on our overall system performance.
C
Conrad Moore
5
Easy installation and solid operation. This is a perfect solution for increasing our available storage space in a space-constrained rack.
D
Dahlia Lane
4
High-quality expansion with a professional finish. It ensures our data remains accessible and provides a dependable way to scale as needed.
Questions & Answers
What is the RX418 4-Bay Expansion Unit?
The RX418 is a diskless 4-bay SAS/SATA expansion enclosure designed to increase the storage capacity of compatible NAS or server systems.
Which host systems are compatible with the RX418?
The RX418 supports QNAP Turbo NAS models and select SAS-enabled servers via a mini-SAS HD 4i-to-4e connection for seamless storage expansion.
Does the RX418 require a specific RAID controller?
No dedicated RAID controller is required; the RX418 relies on the host system’s RAID or JBOD controller to manage installed drives.
What types of drives can I install in the RX418?
The RX418 supports 3.5” and 2.5” SAS or SATA hard drives and SSDs, allowing flexible configurations up to 16 TB per bay.
How do I connect the RX418 to my NAS or server?
Use the included mini-SAS HD 4i-to-4e cable to connect the RX418’s SAS OUT port to your host’s SAS expansion port for plug-and-play integration.
What is the maximum raw capacity of the RX418?
With current 16 TB drives, the RX418 can support up to 64 TB of raw storage across its four bays.
Can I hot-swap drives in the RX418?
Yes, the RX418 supports hot-swapping for all bays, enabling drive replacement or upgrades without system downtime.
How is the RX418 powered?
The RX418 features an internal 250 W power supply with active cooling to ensure stable operation under full drive load.
What are the dimensions and weight of the RX418?
The RX418 measures 185 × 188 × 368 mm and weighs approximately 7.6 kg when empty, making it rack- or shelf-friendly.
How is noise level managed in the RX418?
Equipped with a variable-speed fan, the RX418 operates at a noise level below 30 dB during typical workloads.
Does the RX418 support monitoring and alerts?
Yes, when connected to a QNAP NAS, drive health, temperature, and fan status are monitored and alerts are issued via the QTS interface.
What warranty covers the RX418?
The RX418 includes a two-year hardware warranty against manufacturing defects, with optional extension plans available.
How do I install drives in the RX418?
Release the front-panel latch, slide in 3.5” or 2.5” drives into the corresponding trays, then secure and lock each tray before power-up.
Can I daisy-chain multiple RX418 units?
Yes, you can daisy-chain up to two RX418 units to a single host port, expanding total bay count to eight drives.
What cooling features does the RX418 offer?
The RX418’s front-to-back airflow design and smart fan control maintain optimal drive temperatures under heavy I/O workloads.
Is firmware required to use the RX418?
No separate firmware is needed; drive management and firmware updates are handled through your NAS or server’s built-in utilities.