
Expansion Unit RX1216sas
Synology RX1216sas delivers an effortless solution for volume expansion and data
backup for Synology RackStation RS18016xs+. RX1216sas seamlessly scales up the
storage capacity of Synology RS18016xs+ by adding additional 12 hard drives on-the-
y when connected directly with a mini-SAS cable. Synology RX1216sas is backed
with Synology’s 5-year limited warranty.
Highlights
● Plug-n-use design for seamless
storage space upgrade
● Redundant data paths & power
supplies ensure service uptime
● SAS and SATA drives for exible
capacity and balanced
performance
● Managed with Synology
DiskStation Manager (DSM)
● Backed with Synology’s 5-year
limited warranty & Synology
Replacement Service (SRS)
1
Storage Capacity Expansion
When storage capacity on Synology RackStation RS18016xs+ reaches its limit, Synology
Expansion Unit RX1216sas provides an easy way to immediately scale up by adding additional
12 SATA and SAS drives for exibility and balanced performance. RAID volumes on Synology
RS18016xs+ can be expanded directly without having to reformat existing drives, ensuring
that service on Synology RS18016xs+ continues during capacity expansion.
Synology RX1216sas can also be used as a dedicated local backup solution for Synology
RS18016xs+. When created as a separate volume, Synology RX1216sas provides a great backup
solution to RS18016xs+ in case of system failure.
Reliable Plug-n-Use Design
Synology RS18016xs+ securely connects to Synology RX1216sas through dual SAS cables to
ensure maximum throughput and connection redundancy. Drives in the connected Synology
RX1216sas can operate as though they were internal to Synology RS18016xs+, with no
data–retrieval lag. Redundant power supplies also ensure continual service uptime. Synology
RX1216sas is managed by Synology DiskStation Manager, with no additional software
installation required.
Green & Easy to Manage
Deep Sleep can be manually congured 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
hard disk. RX1216sas will also smartly power on/o with RS18016xs+, so no user intervention
is needed to keep this system running smartly and eciently.

Connections & Buttons
5 6 7 8 9 9 10 10
1
Power button and indicator
5
Power port
9
SAS IN port
Technical Specications
Hardware
Compatible drive type 3.5” or 2.5” SAS / SATA III / SATA II x 12 (hard drives not included)
Expansion port SAS IN x 2, SAS OUT x 2
Hot swappable drive Yes
Size (HxWxD)
Weight
System fan 4 (80mm x 80mm x 32mm)
Power recovery
AC input power voltage 100V to 240V
Power frequency 50Hz to 60Hz, single phase
Operating temperature
Storage temperature -20°C to 60°C (-5°F to 140°F)
Relative humidity 5% to 95% RH
Supported NAS models
2
2
Beep off button
6
PSU indicator and beep off button
10
SAS OUT port
3
Drive status indicator
7
PSU fan
88mm x 430mm x 692mm
13.5 Kg
Synchronized with connected Synology RackStation
5°C to 35°C (40°F to 95°F)
RS18016xs+
4
Drive tray
8
Expansion unit ID indicator
Environment and Packaging
Environment RoHS Compliant
Package Content RX1216sas main unit x 1, User’s guide x 1, Accessory pack x 1, AC power cord x 2, Mini-SAS cable x 2
Certication FCC: Class A, CE: Class A, BSMI: Class A
Optional accessories Synology RKS1314 - Rail Kit Sliding
Warranty 5 years
*Specications are subject to change without notice. Please refer to www.synology.com for the latest information.
1. Available in selected countries only. For detailed terms and conditions, please visit the Synology Replacement Service (SRS) website at https://srs.synology.com.
2. For information about the newest supported models, please visit www.synology.com.
SYNOLOGY INC.
Synology is dedicated to taking full advantage of the latest technologies to bring businesses and home users reliable and affordable ways to centralize data storage, simplify data
backup, share and sync les across different platforms, and access data on-the-go. Synology aims to deliver products with forward-thinking features and the best in class customer
services.
Copyright © 2015, 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. Printed in
Taiwan.
RX1216sas-2015-ENU-REV001
Headquarters
Synology Inc. 3F-3, No. 106, Chang An W. Rd., Taipei, Taiwan Tel: +886 2 2552 1814 Fax: +886 2 2552 1824
China
Synology Shanghai
20070, Room 516, No. 638,
Hengfeng Rd., Zhabei Dist.,
Shanghai, China
France
Synology France SARL
39 rue Louis Blanc,
92400 Courbevoie, France
Tel: +33 147 176288
North & South America
Synology America Corp.
3535 Factoria Blvd SE #200,
Bellevue, WA 98006, USA
Tel: +1 425 818 1587
United Kingdom
Synology UK Ltd.
Unit C, Denbigh West Business Park,
Third Avenue, Bletchley,
Milton Keynes, MK1 1DH, UK
Tel: +44 1908 366380
Germany
Synology GmbH
Grafenberger Allee 125
40237 Düsseldorf
Deutschland
Tel: +49 211 9666 9666