SKU: 56651211281

Synology RX418 4-Bay Expansion Unit

Sale price$44545.50 Regular price$49495.00
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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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Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. 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
SKU: 56651211281

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★★★★★ 5
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Reviewed in the United States on May 29, 2026
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Charlottesville, US
★★★★★ 5
Its a hit for my 9lb chewer!
Style: Chilly Penguin, Size: Small (Pack of 1)
So far so good! My Pup is a chewer and destroys most of his toys. This has been great to keep him happy and occupied for about an hour. I work from home, so when I know I need to keep him busy this is perfect. Ill keep an eye on it to make sure he doesn't break it, but it is pretty solid and thick. He can get through a puzzle in seconds, so this has been so good for him. Ive done mostly broth and veggies, some kibble. Even yogurt and peanut butter. Right now he gets it twice a day. He spends about an hour with it and then hes so tired hes ready for a nap. Once around mid day and another late evening before bed. Im ordering another to keep for when I have to leave him home alone. He cleans it pretty well, but Ive found soaking in hot water also loosens any bits left behind. Because its small, I'm not worried about extra calories.
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Reviewed in the United States on September 8, 2025
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Dfg
Pawtucket, US
★★★★★ 5
Good to for korgi
Dog loves it
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Reviewed in the United States on May 23, 2026
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Samael
Birmingham, US
★★★★★ 1
SMELLS MUSTY
Opened it up for our pup on his bday and it smelled like pure mold. We had to throw it out because it was just terrible smelling and we didn't want our pup to even put it in his mouth!
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Reviewed in the United States on March 2, 2026
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Traveling Carpenter
San Leandro, US
★★★★★ 4
Battery so so
Each charge doesn’t last very long, but my dog likes it when it does.
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Reviewed in the United States on April 9, 2026

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