RS6426xs+

Synology RS6426xs+ 16 bay 4U Rackmount Rackmount NAS for Enterprise Storage

Synology RS6426xs+ 16 bay 4U Rackmount NAS, Intel Xeon D-1739 CPU, GPU cards support, 16GB DDR4 ECC RDIMM system Memory, 6 Memory slots up to 96GB Memory, 16 x 3.5" SATA HDD or 2.5" SATA SSD Drive bays, 64 Maximum Drive bays with Expansion unit, Hot Swappable Drive, 2x RJ-45 10GbE LAN Port, 2x USB 3.2 Gen 1 Port, 4 Expansion Port, Mini-SAS HD Expansion Port Type, 2x Gen4 x8 slot PCI-e Expansion, 3U Form Factor (RU)

Overview:

Synology RS6426xs+ 16-Bay Rackmount NAS for Enterprise Storage
Built for demanding enterprise environments, the Synology RS6426xs+ delivers high-performance, scalable network storage designed to support growing business workloads. Starting with 16 drive bays and expandable up to 64 bays, this 3U rackmount NAS provides the flexibility to grow from terabytes to petabyte-scale storage without replacing existing infrastructure.

Powered by an Intel Xeon D-1739 processor and equipped with ECC memory, the system delivers exceptional reliability for virtualization, centralized backups, file sharing, surveillance, and mission-critical applications. Dual 10GbE networking, PCIe expansion, SSD cache support, and advanced storage management make it an ideal platform for organizations requiring speed, resilience, and future expansion.

Description:

The Synology RS6426xs+ combines enterprise-class performance with intelligent storage management to help businesses protect, organize, and access their data efficiently. Designed for modern IT environments, it supports virtualization platforms, private cloud collaboration, comprehensive backup solutions, and large-scale surveillance deployments. Its expandable architecture allows businesses to increase storage capacity, networking performance, and caching capabilities as operational requirements grow.

Whether deployed as a centralized file server, virtualization storage platform, backup appliance, or surveillance solution, the RS6426xs+ delivers reliable performance and simplified management while helping reduce downtime through redundant hardware and high availability options.

Features:

Enterprise Storage Designed to Scale
The RS6426xs+ starts with 16 SATA drive bays supporting both 3.5-inch hard drives and 2.5-inch SSDs. When additional capacity is required, compatible expansion units increase the system to a maximum of 64 drive bays, allowing raw storage capacities of up to 1,536TB.

Storage expansion supports growing datasets without requiring major infrastructure changes.

High-Speed Performance
Built for demanding workloads, the system delivers sequential performance exceeding:

• Up to 6,700 MB/s sequential read
• Up to 4,300 MB/s sequential write
• Dual integrated 10GbE RJ-45 networking
• SSD cache support for reduced latency and improved IOPS

Additional networking upgrades are available through PCIe expansion, including higher-speed Ethernet and Fibre Channel connectivity.

Reliable Business Infrastructure
Business continuity is strengthened through multiple layers of hardware redundancy and failover protection.

Key reliability advantages include:

• Redundant power supplies
• Synology High Availability support
• Automatic network failover
• Link Aggregation load balancing
• Dedicated out-of-band management
• Hot-swappable drive bays

These technologies help minimize service interruptions and simplify system administration.

Flexible Expansion Options
The RS6426xs+ adapts as business requirements evolve.

Expansion capabilities include:

• Up to 64 total drive bays
• PCIe Gen4 x8 expansion slots
• SSD caching
• Additional 10GbE and 25GbE networking
• Fibre Channel adapter support
• Mini-SAS HD expansion connectivity

This flexibility protects long-term infrastructure investments while supporting future performance upgrades.

Private Cloud and Secure File Collaboration
The platform enables organizations to build a secure private cloud for employees across multiple offices and remote locations.

Users can:

• Synchronize files across multiple Synology systems
• Access files from desktop, browser, or mobile devices
• Share files securely with permission controls
• Maintain detailed activity auditing
• Collaborate in real time on business documents

Hybrid cloud integration also allows frequently accessed data to remain local while less-used files are stored in cloud services.

Comprehensive Backup and Disaster Recovery
The RS6426xs+ provides centralized protection for business-critical data across physical systems, virtual environments, cloud services, and NAS devices.

Supported backup targets include:

• Windows
• macOS
• Linux
• VMware
• Microsoft Hyper-V
• Synology NAS
• Microsoft 365
• Google Workspace

Advanced backup technologies include data deduplication, versioning, encryption, immutable snapshots, replication, and automated scheduling.

Virtualization Ready
The system integrates seamlessly into enterprise virtualization environments.

Supported platforms include:

• VMware vSphere
• Microsoft Hyper-V
• Citrix XenServer
• OpenStack Cinder

Support for Windows ODX, VMware VAAI, and ALUA further enhances storage efficiency and workload performance.

Enterprise Surveillance Platform
The integrated Synology Surveillance Station transforms the RS6426xs+ into a powerful video management server.

Capabilities include:

• Support for over 20,000 IP camera models
• Up to 285 IP cameras
• Centralized monitoring
• Remote playback
• AI integration through open APIs
• Flexible third-party hardware compatibility

This makes the platform suitable for businesses requiring scalable physical security infrastructure.

Centralized Management
IT administrators can efficiently manage multiple Synology systems through centralized tools that simplify deployment, monitoring, updates, and maintenance.

Administrative capabilities include:

• Fleet-wide monitoring
• Batch updates
• Group policy management
• Performance monitoring
• Backup status reporting
• Login auditing
• Cloud-assisted monitoring

Technical Highlights

• Part Number / SKU: RS6426xs+
• Intel Xeon D-1739 processor
• 16GB DDR4 ECC RDIMM memory installed
• Six memory slots supporting up to 96GB
• 16 x SATA drive bays supporting HDDs or SSDs
• Expandable to 64 drive bays
• Hot-swappable drives
• Dual 10GbE RJ-45 LAN ports
• 2 x USB 3.2 Gen 1 ports
• Four expansion ports
• Mini-SAS HD expansion interface
• 2 x PCIe Gen4 x8 expansion slots
• 3U rackmount chassis

Ideal Applications
The Synology RS6426xs+ is well suited for:

• Enterprise file storage
• Centralized business backups
• Private cloud deployments
• Virtual machine storage
• Multi-site file synchronization
• Disaster recovery
• Large-scale surveillance systems
• Business collaboration platforms
• High-capacity archive storage
• AI-assisted workplace productivity

For organizations seeking a scalable enterprise NAS with high-speed networking, advanced data protection, virtualization support, and room for future expansion, the Synology RS6426xs+ (Part Number: RS6426xs+) provides a powerful storage platform capable of supporting demanding business environments for years to come.

Specifications:

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Specifications
Product Code	RS6426xs+
CPU
CPU Model	Intel Xeon D-1739
CPU Quantity	1
CPU Cores	8
CPU Threads	16
CPU Architecture	64-bit
CPU Frequency	3.0 (base) / 3.5 (turbo) GHz
Hardware Encryption Engine	Yes
Memory
System Memory	16 GB DDR4 ECC RDIMM
Memory Module Pre-installed	16 GB (16 GB x 1)
Total Memory Slots	6
Maximum Memory Capacity	96 GB (16 GB x 6)
Notes	Synology may revise pre-installed memory module specifications in response to component lifecycle and supply conditions. All revised components undergo the same rigorous validation to ensure equivalent compatibility, stability, and performance.
Storage
Drive Bays (See all supported drives)	16 x 3.5" SATA HDD or 2.5" SATA SSD
Maximum Drive Bays with Expansion Unit	64 (RX1225RP x 4)
Hot Swappable Drive	Yes
Notes	Compatible drives are mandatory. Please consult our compatibility list before purchasing hard drives. For more details, please refer to this article.
	SSD cache can be enabled with select compatible SSD. See the compatibility list for model-specific support and details. SSDs are sold separately.
External Ports
RJ-45 10GbE LAN Port	2
Out-of-Band Management LAN Port	1
USB 3.2 Gen 1 Port	2
Expansion Port	4
Expansion Port Type	Mini-SAS HD
PCIe
PCIe Expansion	2 x Gen4 x8 slot (x8 link)
Appearance
Form Factor (RU)	3U
Size (Height x Width x Depth)	132.3 mm x 482 mm x 656.5 mm
Weight	17.9 kg
Rack Installation Support	4-post 19" rack (Synology Rail Kit - RKS-02)
Notes	The rail kit is sold separately
Others
System Fan	80 mm x 80 mm x 3 pcs
Fan Speed Mode	Full-Speed Mode
	Cool Mode
	Quiet Mode
Easy Replacement System Fan	Yes
Power Recovery	Yes
Noise Level	42.2 dB(A)
Scheduled Power On / Off	Yes
Wake on LAN / WAN	Yes
Power Supply Unit / Adapter	550 watts
Redundant Power Supply	Yes
AC Input Power Voltage	100 V to 240 V AC
Power Frequency	50/60 Hz, Single Phase
Power Consumption	165.45 watts (Access)
	73.38 watts (HDD Hibernation)
British Thermal Unit	564.92 BTU/hr (Access)
	250.55 BTU/hr (HDD Hibernation)
Notes	Noise testing was conducted with the Synology system fully installed with Synology SATA SSDs and in an idle state. Two G.R.A.S. type 40AE microphones were placed at a 1 m distance from the front and rear of the device. Background noise: 16.49-17.51 dB(A) , Temperature: 24.25-25.75degreesC , Humidity: 58.2-61.8%.
Temperature
Operating Temperature	0degreesC to 35degreesC (32degreesF to 95degreesF)
Storage Temperature	-20degreesC to 60degreesC (-5degreesF to 140degreesF)
Operating Humidity	8% to 80% RH
Storage Humidity	5% to 95% RH
Certification
Certification	FCC
	CE
	BSMI
	VCCI
	RCM
	UKCA
	EAC
	CCC
	KC
	BIS
	UL
Environment
Environment	RoHS Compliant
Packaging Content
Packaging Content	Main Unit X 1
	Accessory Pack X 1
	C13 to C14 power cord X 2
	Front Cover X 1
Optional Accessories
Optional Accessories	DDR4 ECC RDIMM: D4ER02-16G
	Expansion Units: RX1225RP
	Enterprise Series 3.5" SATA HDD: HAT5300 Series
	Enterprise Series 2.5" SATA SSD: SAT5200 Series
	M.2 SSD & 10GbE Combo Adapter Card: E10M20-T1
	M.2 SSD Adapter Card: M2D20
	25GbE Network Interface Card: E25G30-F2
	10GbE Network Interface Card: E10G30-F2/E10G30-T2/E10G30-T1
	Rail Kit Sliding: RKS-02