Seamless 12-bay capacity expansion

Add up to 96 storage bays to compatible units with Synology Expansion Unit RX1223RP. Enlarge or create new volumes without system or service downtime thanks to online storage expansion.

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Expand storage on the fly

RX1223RP provides simple storage expansion with 12 drive bays for 3.5”/2.5” SATA HDD/SDD drives.

Up to eight RX1223RP expansion units can be added to compatible serves for up to 1.7 petabytes of additional raw storage.

Redundant design for high reliability

Modular drive trays and system fans enable easy and quick replacement, reducing the impact of maintenance on service availability. Redundant power supply units keep your data online in the event one power source fails.

Simple deployment and management

Plug-and-play design means the RX1223RP is ready to use as soon as it is connected to a host device.

Online storage expansion and easy storage management in Synology DiskStation Manager’s (DSM) simplify configuration and management.

Backed by Synology drives

Leverage high sustained performance and reliability with enterprise-grade drives with built-in data protection designed for Synology systems.

Enterprise Series 3.5" SATA

Enterprise Series 2.5" SATA

Synology has you covered

The RX1223RP is backed by Synology's 5-year limited warranty, including technical support and hardware replacement services to maximize your return on investment and ensure continued high-quality performance. Learn more

Notes:

The warranty period starts from the date of purchase as stated on your purchase receipt. Visit https://www.synology.com/company/legal/warranty for more information.

Hardware Specifications
Applied Models
Applied Models	Supports creating volumes across different units	SA series:SA6400 23 series:RS2423RP+, RS2423+
	Notes	To have better performance, we recommend creating storage volumes physically located within the same NAS or Expansion Unit, rather than creating volumes across your NAS and Expansion Unit.
Storage
Storage	Drive Bays	12
	Compatible Drive Type* (See all supported drives)	3.5" SATA HDD 2.5" SATA SSD
	Hot Swappable Drive*
	RAID Management through Synology DSM
	Notes	Synology only guarantees full functionality, reliability, and performance for Synology drives listed on the compatibility list. The use of non-validated components may limit certain functionality and result in data loss and system instability. "Compatible drive type" indicates drives that have been tested to be compatible with Synology products. This term does not indicate the maximum connection speed of each drive bay.
External Ports
External Ports	Expansion Port	1
Appearance
Appearance	Size (Height x Width x Depth)	88 mm x 430.5 mm x 692 mm
	Size (Height x Width x Depth) (with server ears)	88 mm x 482 mm x 724 mm
	Weight	13.9 kg
	Rack Installation Support*	4-post 19" rack (Synology Rail Kit - RKS-02)
	Notes	The rail kit is sold separately
Power
Power	Power Recovery	Synchronized with the Synology RackStation
	Power Supply Unit / Adapter	550 W
	AC Input Power Voltage	100V to 240V AC
	Power Frequency	50/60 Hz, Single Phase
	Power Consumption	93.59 W (Access) 30.73 W (HDD Hibernation)
	British Thermal Unit	319.34 BTU/hr (Access) 104.86 BTU/hr (HDD Hibernation)
	Redundant Power Supply
	Notes	For more information on how power consumption is measured, refer to this article.
Temperature
Temperature	Operating Temperature	0°C to 35°C (32°F to 95°F)
	Storage Temperature	-20°C to 60°C (-5°F to 140°F)
	Relative Humidity	5% to 95% RH
Others
Others	System Fan	80 mm x 80 mm x 4 pcs
	Easy Replacement System Fan
	Noise Level*	54.3 dB(A)
	Notes	Noise Level Testing Environment: Fully loaded with Synology SAT5200-480G SSD in the idle state. Two G.R.A.S. Type 40AE microphones, each set up 1 meter away from the Synology NAS at the front and rear. Background noise: 16.49-17.51 dB(A); Temperature: 24.25-25.75˚C; Humidity: 58.2-61.8%
Certification
Certification	UL FCC CE BSMI UKCA EAC VCCI RCM KC
Warranty
Warranty	5 Years
	Notes	The warranty period starts from the purchase date as stated on your purchase receipt. (Learn more)
Environment & Packaging
Environment
Environment	RoHS Compliant
Packaging Content
Packaging Content	Main Unit X 1 Accessory Pack X 1 AC Power Cord X 2 Expansion Cable: MiniSAS-HD X 1 Quick Installation Guide X 1
Optional Accessories
Optional Accessories	3.5" SATA HDD: HAT5300/HAT3300 Enterprise Series 2.5" SATA SSD: SAT5200 Series Rail Kit Sliding: RKS-02

Notes:

Model specifications are subject to change without prior notice.
The figures are based on Synology internal testing. Each performance test is done individually. No other services or applications are processed at the same time.
The actual performance may be lower than lab testing figure due to differences in server configuration, deployment, and the number of active operations.
If usage requirements exceed the specifications above, please contact our regional partners for professional advice.