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 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.

Technical details
Sustainability certificates	RoHS
Ports & interfaces
USB connectivity	N
eSATA ports quantity	1
Weight & dimensions
Width	480 mm
Depth	325 mm
Height	44 mm
Weight	4.28 kg
Power
Power supply unit (PSU) capacity	100 W
Number of power supply units	1
Power consumption (typical)	23.26 W
AC input voltage	100-240 V
AC input frequency	50 - 60 Hz
Operational conditions
Operating temperature (T-T)	5 - 35 °C
Operating relative humidity (H-H)	5 - 95%
Storage temperature (T-T)	-20 - 60 °C
Storage
Storage drives installed	N
Installed storage drive type	N
Supported storage drive types	HDD & SSD
Number of storage drives supported	4
Maximum supported storage capacity	56 TB
Supported storage drive interfaces	Serial ATA, Serial ATA II, Serial ATA III
Hot-swap drive bays	Y
Packaging content
Cables included	AC, eSATA
Design
Chassis type	Rack (1U)
Product colour	Black, Grey
Number of fans	3 fan(s)
Noise level	25.1 dB
Certification	FCC A, CE A, BSMI A, EAC, VCCI, RCM, KC
Performance
Compatible products	Synology RS1219+, RS818(RP)+, RS815(RP)+, RS816, RS815
Logistics data
Harmonized System (HS) code	84717020