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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
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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]
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4.2 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Terrific product
Color: A1-Red
I adopted a 2 year old cat - she’s not much for a lot of the toys I have purchased for her, until this one! At first she seemed very cautious with it - but still followed it around - once I slowed it down (a few different options) she loves to play with it! Great purchase very pleased with it
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Reviewed in the United States on March 6, 2026
★★★★★ 5
Fun & Fast moving toy for my cats!
Color: A1-Red
This is such a fun little toy to keep my cats entertained. They were definitely weary about it for the first few days, but started to get used to it and play with it after a bit. I wish there was an even slower option because the slow option is still pretty fast, but at least it gets them up and moving. They will even play with the tail part when it's not turned on. Like others have said, it does collect hair pretty easily, but it's very easy to clean off. I don't have any dogs, but I could see smaller dogs loving this as well!
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Reviewed in the United States on March 6, 2026
★★★★★ 2
That it’s usable for more than one day
Color: A3-Pink, Color: A3-Pink
The toy itself is great and my puppy enjoyed it. My problem is that it didn’t come with a charging cord and none of mine fit. It never changed colors. Maybe if I had a charger cord it would be worth it, but right now it’s useless!!
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Reviewed in the United States on May 13, 2026
★★★★★ 3
Fun for Fido but flimsy
Color: A2-Blue
My 15 yearold mini Schnauzer, Sam, played with this for less than 1 hour and tore the rubber sleeve off it. I will say the toy itself is a genius idea. Sam was absolutely ensconced. I wish it were made sturdier.
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Reviewed in the United States on January 24, 2026
★★★★★ 4
It does exactly what they say it does! Worth the money
Color: A1-Red
It arrived quickly. It’s a fun toy! It’s the right size for cats. Definitely worth the money. It is exactly as described. So far, the quality seems very good and it seems durable. The instructions are on the side of the box, which makes learning how to operate it easy. I love it that it’s red, because my kitty seems to be attracted to red. My kitty is very interested in it, yet isn’t quite sure what to think of it. I love that it changes directions on its own so that it doesn’t get stuck or lost under furniture, which is typical for a ball that cats play with. It seems to only go two, three or four feet in one direction and then it changes directions, which is both good and bad. I just wish it would go farther in one direction before changing directions so that my kitty could chase it farther, as we have plenty of space in our house for her to run. But that certainly could be a plus for other cats, enjoying not knowing where the ball is going to go next and really keep them on their toes.
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Reviewed in the United States on January 20, 2026