Synology RX4 Data Sheet

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RX4
Synology RX4 delivers an effortless solution for volume expansion and data backup for 2009 Synology 
Disk Station. It not only helps users smoothly expand the Synology Rack Station RS409+/RS409RP+ 
capacity to 8 hard drives on the fly, but also can be used as a perfect backup solution. 
When running out of the hard drive capacity on Synology Rack Station RS409+/RS409RP+, users can expand 
more storage with Synology RX4. By attaching it to Synology Rack Station RS409+/RS409RP+, the plug-n-
use connectivity and eSATA 3.0 Gb/sec definition allow users to expand volume from Synology Rack Station 
RS409+/RS409RP+.
Synology RX4 delivers a perfect backup solution for Synology Rack Station RS409+/RS409RP+, too. By attaching 
it to Synology Rack Station RS409+/RS409RP+, the plug-n-use connectivity and eSATA 3.0 Gb/sec definition 
allows users to create an independent volume on the RX4 as a good backup target.
 
The HDD hibernation can be manually configured to take effect automatically when the system has been 
inactive for a period of time. This not only save energy but also extends the lifespan of the hard disk.
Synology RX4 can be directly managed from Synology Disk Station Manager 2.1. No firmware installation is 
needed.
Data Sheet
RX4
Key Features
Plug-n-use
 
Hot-swappable HDD design
 
Hibernation
 
Managed from Synology Disk Station 
 
Manager 2.1
Hardware
Internal HDD: 4X 3.5”SATA(II)
External HDD Interface: 1X eSATA
Size: 44mm X 430.5mm X 457.5mm
Weight: 7.1kg
Fan: 3X (40mmx40mm)
Noise Level: 32dB(A)
Power Recovery
AC Input Power Voltage: 100V to 240V
Power Frequency: 50Hz to 60Hz, Single 
Phase
Max HDD Support (Internal HDD): 2TB  
Operating temperature: 5°C to 35°C (40°F 
to 95°F)
Storage temperature: -10°C to 70°C (15°F 
to 155°F)
Relative Humidity: 5% to 95% RH
Max Operating Altitude: 10,000 feet
Power Consumption
23W 
(1)
RAID Management
Volume Type: Basic, JBOD, RAID 0, RAID 1, 
RAID 5, RAID 5+Spare, RAID 6 
RAID Change: Basic to RAID 1, Basic to RAID 
5, RAID 1 to RAID 5, RAID 5 to RAID 5+Spare, 
Expand with Larger Hard Drive: RAID 1, RAID 
5, RAID 5+Spare, RAID 6
RAID Expansion with More Hard Drives: RAID 
5 from 3 to 4 HDDs 
Environment
RoHS Compliant 
Package Content
RX4 Main Unit
User’s Guide 
Assembling Kit
AC Power Cord
eSATA Cable
___
(1) Measured with 4 Seagate 750GB ST3750640NS 
hard drives. The figures could vary on
different environments.
Power LED
Fan
AC Input
Power Switch
CONNECTIONS & BUTTONS
SYNOLOGY INC.
Synology Inc., founded in April 2000 by a duo experienced
in system designing and marketing, is a dedicated Network
Attached Storage (NAS) products provider located in the Taipei
city, Taiwan. With a staunch and united team organization,
Synology creates and brings forth NAS servers of originality
,Synology Disk Station, for the global market. Under the breezy 
yet conscientious team work, Synology embodies the spirit of 
vitality, creativity, specialty, and versatility, implanting a new 
breath into the staid NAS business. With our sustained and 
substantial investment in research and development, Synology 
is pursing the laurels of contemporary NAS industry on an 
international scale.
Synology NAS Servers are designed to fulfill its customers’ 
need of security, performance, energy saving, and functionality 
on a broad range around the globe from prosumers to 
corporations. Moreover, to practice commitment made to its 
widespread customers and to provide every possible means of 
satisfactory services, Synology is using its best endeavors to the 
establishment a fully developed customer support and service 
team. Having a vision beyond the visible, Synology Disk Station 
signifies –Value.
Copyright © 2009, 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 specification and product 
descriptions at anytime, without notice. Printed in Taiwan,
RX4-2009-ENU-REV002
http://www.synology.com
6F-2, No. 106, Chang An W. Rd., Taipei, Taiwan
Tel: 886 2 2552 1814   Fax: 886 2 2552 1824
Networking
Technical Specifications
Digital Media Adapter
RX4
eSATA
External Disk
Wireless Router
TV
Stereo System
PC / Mac / Linux
IP Camera
RS409+/RS409RP+
RS409+/RS409RP+