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Description
Synology RX418 4-Bay Expansion UnitFor the Synology RS818+ & RS818RP+ For the Synology RS815+ & RS815RP+ For the Synology RS816 & RS815 4 x 3. 5" 2. 5" SATA Drive Bays 1 x eSATA Port Hot Swappable Drives RAID Management through Synology DSM The RX418 4 Bay Expansion Unit from Synology is designed to provide storage expansion for their RS818+ RS818RP+, RS815+, RS815RP+, RS816, and RS815 NAS arrays. It can also be used as a dedicated local backup destination for Synology 1 RU RackStation
- For the Synology RS818+ & RS818RP+
- For the Synology RS815+ & RS815RP+
- For the Synology RS816 & RS815
- 4 x 3.5"/2.5" SATA Drive Bays
- 1 x eSATA Port
- Hot-Swappable Drives
- RAID Management through Synology DSM
The RX418 4-Bay Expansion Unit from Synology is designed to provide storage expansion for their RS818+ RS818RP+, RS815+, RS815RP+, RS816, and RS815 NAS arrays. It can also be used as a dedicated local backup destination for Synology 1 RU RackStation arrays for comprehensive data protection.
The four drive bays of the RX418 natively support 3.5" and 2.5" SATA hard drives and SSDs. The drives are hot-swappable and there is also RAID management through Synology Disk Station Manager. The RX418 is equipped an eSATA port, which allows for connectivity with your host NAS, and operates using a 100W power supply that run using 100-240 VAC at 50/60 Hz. Included is an accessory pack, an AC power cord, and an eSATA cable.
General Features
- Storage Capacity Expansion
- When the storage capacity on a Synology 1 RU RackStation reaches its limit, Synology's RX418 expansion unit provides easy capacity expansion by adding four 3.5"/2.5" SATA drives to the system. The Synology RX418 can also be used as a dedicated local backup destination of a Synology 1 RU RackStation for comprehensive data protection.
- Plug-and-Play Design
- Simply connect the Synology RX418 to a corresponding Synology RackStation and it is ready to use. Drives in the connected Synology RX418 operate as though they were internal to the connected Synology NAS and can be managed directly by Synology DiskStation Manager (DSM), with no additional software installation required.
- Green and Easy to Manage
- Synology's DSM provides an intuitive user interface for easy system management. Drive hibernation can be configured in DSM to take effect automatically when the system has been inactive for a period of time. This not only saves energy but also extends the lifespan of the installed drives.
UPC: 846504002986
Synology Expansion Unit RX418 specs
| Hardware Specifications | |
|---|---|
| Compatible Models | RS818+ / RS818RP+ RS815+ / RS815RP+ RS816 RS815 Some models support independent volume creation only |
| Storage | |
|---|---|
| Drive Bays | 4 |
| Compatible Drive Types | 3.5" SATA HDDs 2.5" SATA HDDs 2.5" SATA SSDs |
| Maximum Internal Raw Capacity | 48 TB (4 x 12 TB, capacity may vary by RAID types) |
| Hot-Swappable Drive | Yes |
| RAID Management through Synology DSM | Yes |
| External Ports | |
|---|---|
| eSATA Port | 1 |
| Power | |
|---|---|
| Power Recovery | Synchronized with the Synology RackStation |
| Power Supply Unit / Adapter | 100 W |
| AC Input Power Voltage | 100 to 240 VAC |
| Power Frequency | 50 to 60 Hz, Single Phase |
| Power Consumption | Access: 23.26 W Hibernation: 6.39 W |
| Temperature & Humidity | |
|---|---|
| Operating Temperature | 40 to 95°F / 4 to 35°C |
| Storage Temperature | -5 to 140°F / -21 to 60°C |
| Relative Humidity | 5 to 95% RH |
| General | |
|---|---|
| System Fan | 40 x 40 mm (3 pieces) |
| Noise Level | 25.1 dBA |
| Dimensions | 1.7 x 18.9 x 12.8" / 44 x 480 x 325 mm |
| Weight | 9.44 lb / 4.28 kg |
| Packaging Info | |
|---|---|
| Package Weight | 13.5 lb |
| Box Dimensions (LxWxH) | 20.7 x 15.7 x 5.6" |
In the Box
Synology RX418 4-Bay Expansion Unit
- Accessory Pack
- AC Power Cord
- eSATA Cable
- Limited 3-Year Hardware Warranty
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.4 ★★★★★
Based on 2194 reviews
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Product Reviews
★★★★★ 5
The answer to calloused feet.
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
If you have dry callused soles, these are your answer. All my calluses left and my feet were very soft. They should not be walked in unless you are very, very careful as you will slip and fall. I stopped using them for a while and all my problem calluses are back, even when I use lotion at night. They tell you not to sleep in them, I don't know why. I do put these on at night and end up taking them off later as they're not comfortable to sleep in.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 28, 2026
★★★★★ 5
Good Product
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
These socks are good for moistening. Durability is awesome Fit true to size. Traction could be a little better. The sock are very comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 23, 2026
★★★★★ 4
Slippery when wet!!!
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
“These moisturizing slippers are actually really comfortable and feel great on the feet. They’re soft, cozy, and do help moisturize while you wear them. I also think they’re a good value for the money. The only downside is that once your feet get moisturized, they can get slippery inside the slippers, so I wouldn’t recommend walking around too much in them. Better for relaxing and letting your feet soak up the moisture than for being up and moving around.”
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
★★★★★ 5
Love them
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I wear a size 11.5 in ladies shoe and these just barely fit. Butttt after I put lotion on my feet and slipped these on and left them on for about 30 mins. It left my feet really soft! They work great as intended. Would buy again
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Reviewed in the United States on January 31, 2026
★★★★★ 3
Effective but may be uncomfortable
Color: Pink & Beige, Size: Medium/Large(fits size 8 to 11)
I have eczema on my feet and use a prescription cream that I leave on overnight. I often have a problem sleeping in socks but the silicone feels cool on my feet. The only drawback I have is the opening of the socks feel very tight around my ankles making them uncomfortable on me. I wish the opening was a bit more flexible.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 20, 2025
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