
Expansion Unit
RX418
Synology RX418 delivers an eortless solution for volume expansion and data backup for Synology 1U
RackStation1 by adding 4 additional SATA drive bays on-the-y. With its short-depth chassis design, RX418
ensures easy installation and deployment in 2-post racks and wall mount racks. Synology RX418 is backed
with Synology’s 3-year2 limited warranty.
Storage Capacity Expansion
When the storage capacity on Synology 1U RackStation reaches its limit, Synology
expansion unit RX418 provides easy capacity expansion by adding 4 3.5"/2.5" SATA
drives to the system. Synology RX418 can also be used as a dedicated local backup
destination of Synology 1U RackStation for comprehensive data protection.
Reliable Plug-and-play Design
Simply connect Synology RX418 to 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
Award-winning Synology DSM provides an intuitive user interface for easy system
management. Drive hibernation can be congured in DSM to take eect 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.
Highlights
Plug-and-play design for seamless
•
storage space upgrade
Online volume expansion
•
12-inch depth to t in 2-post racks and
•
wall mount racks
Energy-saving deep sleep mode
•
Managed from Synology DiskStation
•
Manager (DSM)

Hardware Overview
1 2 3 4 5
6
1 Power button and indicator 2 Alert indicator 3 eSATA indicator 4 Drive status indicator
5 Status indicator 6 Drive tray 7 Fan 8 Power port
9 eSATA port
7 8 97 7
Technical Specications
Hardware
Compatible drive type 4 x 3.5/2.5" SATA HDD/SSD (drives not included)
External port 1 x eSATA
Size (HxWxD)
Weight 4.28 kg
System fan 3 (40 x 40 x 20 mm)
AC input power voltage 100V to 240V AC
Power frequency 50 to 60Hz, single phase
Power recovery Synchronized with connected Synology RackStation
Operating temperature 5°C to 35°C (40°F - 95°F)
Storage temperature -20°C to 60°C (-5°F to 140°F)
Relative humidity 5% to 95% RH
Maximum operating altitude 5,000 m (16,400 ft)
Supported NAS models
1
• 44 x 430.5 x 290 mm
• 44 x 482 x 325 mm (with server ears)
RS818+, RS818RP+, RS816, RS815+, RS815RP+, RS815
Environment and Packaging
Environment safety RoHS compliant
• RX418 main unit
Package content
Optional accessories Rail Kit RKM114-Rail Kit Mounted / RKS1317-Rail Kit Sliding
2
Warranty
*Model specications are subject to change without notice. Please refer to www.synology.com for the latest information.
1. For complete information on compatible models, please visit www.synology.com.
2. 5-year warranty is available as an optional bundle with EW201, 2-year Extended Warranty service add-on. Visit https://www.synology.com/en-global/products/Extended_Warranty
for more information on availability.
• Quick Installation Guide
• Accessory pack
• Expansion cable
• AC power cord
3 years

SYNOLOGY INC.
Synology is dedicated to taking full advantage of the latest technologies to bring businesses and home users reliable and aordable ways to centralize data storage,
simplify data backup, share and sync les across dierent platforms, and access data on-the-go. Synology aims to deliver products with forward-thinking features
and the best in class customer services.
Copyright © 2018, Synology Inc. All rights reserved. Synology, the Synology logo are trademarks or registered trademarks of Synology Inc. Other product and
company names mentioned herein may be trademarks of their respective companies. Synology may make changes to specication and product descriptions at
anytime, without notice.
RX418-2018-ENU-REV001
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