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Synology RS3621XS+ RackStation SAN/NAS Storage System - Intel Xeon D-1541 Octa-core 2.10 GHz - 12 Bay - 8 GB DDR4 - 2U Rack-mountable
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Product Features
Technical Overview
At the heart of the RS3621XS+ is the Intel Xeon D-1541 system-on-chip, an octa-core processor running at 2.10 GHz. This platform combines server-class CPU performance with integrated networking and I/O, making it ideal for storage-intensive applications without excessive power draw.
Storage management is handled by a Serial ATA controller with extensive RAID support, including Synology's proprietary RAID F1 for SSD-optimized data protection. The system accommodates both hard drives and solid-state drives across its twelve bays, allowing for hybrid storage tiering or all-flash configurations.
Connectivity extends beyond the six built-in Ethernet ports through two PCI Express 3.0 x8 slots. These enable the addition of 25Gb/40Gb network adapters, SAS controllers, or NVMe expansion cards. Two USB 3.2 Gen 1 ports provide peripheral connectivity for external storage or security dongles.
Key Product Advantages
The RS3621XS+ balances raw capability with operational resilience. Redundant hot-swappable power supplies eliminate single points of failure, while the DiskStation Manager OS provides intuitive management through a web interface. Extensive protocol support—including SMB 3.0, NFSv4, iSCSI, and HTTP/HTTPS—ensures compatibility with Windows, Linux, macOS, and virtualization environments.
Enterprise Processor Platform
The Intel Xeon D-1541 delivers reliable, consistent performance for multi-user file services, virtual machine storage, and database hosting. Its eight cores handle concurrent tasks efficiently while maintaining power efficiency in a 2U form factor.
High-Density Storage Expansion
Twelve drive bays in a 2U chassis provide excellent storage density for rack-constrained environments. Support for both HDDs and SSDs allows tailored performance and capacity balancing across diverse workloads.
Comprehensive Network Flexibility
Six Ethernet ports with 10GbE capability offer substantial network bandwidth and segmentation options. Dual PCIe slots future-proof the system for even higher-speed networking as infrastructure evolves.
Deployment / Use Cases
This RackStation suits environments requiring reliable, scalable storage with enterprise features. Its 2U footprint makes it appropriate for standard 19-inch server racks in data centers, server rooms, or colocation facilities.
Typical applications include backup target storage for Veeam or Commvault, video surveillance recording with Synology Surveillance Station, and document management systems. The expandable architecture allows starting with a partial drive complement and growing capacity as needs increase.
Virtualization Storage Backend
Serve as shared storage for VMware vSphere, Microsoft Hyper-V, or KVM hypervisors via iSCSI or NFS. The Xeon processor and multiple network ports handle simultaneous VM I/O demands effectively.
Centralized File Repository
Consolidate department or workgroup file shares with granular permissions and versioning. Support for SMB 3.0 enables continuous availability features for Windows clients, while AFP and NFS cover macOS and Linux users.
Localization and Operating System
The Synology RS3621XS+ RackStation ships with DiskStation Manager (DSM), a Linux-based operating system optimized for storage management and network services. DSM provides a web-based graphical interface that supports multiple languages and regional settings, allowing administrators to configure the system in their preferred locale for seamless integration into global IT environments.
This storage system is designed for universal deployment without region-specific hardware limitations. Its extensive protocol support—including CIFS, AFP, NFS, SMB 3.0, and iSCSI—ensures compatibility with diverse client operating systems such as Windows, macOS, and Linux, facilitating cross-platform file sharing and data access in multinational organizations.
The operating system includes built-in tools for localization, such as time zone configuration, language packs, and regional compliance settings for data governance. These features enable the RS3621XS+ to adapt to various regulatory and operational requirements, making it suitable for data centers, branch offices, and cloud-integrated storage solutions worldwide.
DiskStation Manager (DSM) Platform
DSM offers a comprehensive suite of storage management applications, including backup, surveillance, virtualization, and collaboration tools. Its intuitive interface reduces administrative overhead while providing enterprise-grade security features like encryption, access controls, and audit logging for compliance-driven deployments.
Physical Profile
The RS3621XS+ occupies two rack units (2U) with dimensions of 3.46" (88 mm) height, 18.98" (482 mm) width, and 28.50" (724 mm) depth. This compact form factor maximizes storage density while maintaining standard rack compatibility.
Weighing approximately 31.97 lb (14.5 kg), the chassis is constructed for durability in rack environments. The rack-mountable design includes appropriate mounting hardware for secure installation in server cabinets. Front-accessible drive bays facilitate maintenance without removing the unit from the rack.
- Width
- 18.98" (482 mm)
- Depth
- 28.50" (724 mm)
- Height
- 3.46" (88 mm)
- Weight
- 31.97 lb (14500 g)
Highlights
- Intel Xeon D-1541 octa-core 2.10 GHz processor for enterprise storage performance
- Twelve 2.5"/3.5" drive bays supporting both HDDs and SSDs
- 8 GB DDR4 SDRAM standard memory, expandable via SO-DIMM slots
- Six Gigabit Ethernet ports with 10 Gigabit Ethernet capability
- Dual PCI Express 3.0 x8 expansion slots for network or storage upgrades
- RAID support for levels 0, 1, 5, 6, 10, Basic, JBOD, and Synology RAID F1
- DiskStation Manager operating system for comprehensive storage management
- Dual redundant 500W hot-swappable power supplies
- 2U rack-mountable form factor for standard server cabinet installation
- Extensive protocol support including SMB 3.0, NFSv4, iSCSI, and HTTP/HTTPS
Specifications
| Specifications | |
|---|---|
| Manufacturer | Synology, Inc |
| Manufacturer Part Number | RS3621XS+ |
| Brand Name | Synology |
| Product Line | RackStation |
| Product Series | XS+ |
| Product Model | RS3621XS+ |
| Product Name | RackStation RS3621XS+ SAN/NAS Storage System |
| Packaged Quantity | 1 |
| Product Type | SAN/NAS Storage System |
| Storage | |
| Number of Hard Drives Supported | 12 |
| Number of Hard Drives Installed | 0 |
| Number of Solid State Drive Supported | 12 |
| Number of Solid State Drive Installed | 0 |
| Processor & Chipset | |
| Processor Manufacturer | Intel |
| Processor Type | Xeon |
| Processor Model | D-1541 |
| Processor Core | Octa-core (8 Core) |
| Processor Speed | 2.10 GHz |
| Memory | |
| Standard Memory | 8 GB |
| Memory Technology | DDR4 SDRAM |
| Network & Communication | |
| Ethernet Technology | Gigabit Ethernet,10 Gigabit Ethernet |
| I/O Expansions | |
| Number of Total Expansion Bays | 12 |
| Number of 2.5"/3.5" Bays | 12 |
| Total Number of Expansion Slots | 2 |
| Expansion Slot Type | PCI Express 3.0 x8 |
| Controllers | |
| Controller Type | Serial ATA |
| RAID Supported | Yes |
| RAID Levels | 0, 1, 5, 6, 10, Basic, JBOD, RAID F1 |
| Interfaces/Ports | |
| Total Number of USB Ports | 2 |
| Number of USB 3.2 Gen 1 Ports | 2 |
| Network (RJ-45) | Yes |
| Number of Network (RJ-45) Ports | 6 |
| Software | |
| Operating System | DiskStation Manager |
| Management & Protocols | |
| Protocols | CIFS,AFP,NFS,FTP,WEBDAV,SMB 1.0,SMB 2.0,SMB 3.0,NFSv3,NFSv4,NFSv4.1,iSCSI,HTTP,HTTPS,SNMP,LDAP,CalDAV,DLNA |
| Power Description | |
| Number of Power Supplies Installed | 2 |
| Maximum Power Supply Wattage | 500 W |
| Redundant Power Supply | Yes |
| Physical Characteristics | |
| Height | 3.46" (88 mm) |
| Width | 18.98" (482 mm) |
| Depth | 28.50" (724 mm) |
| Form Factor | Rack-mountable |
| Rack Height | 2U |
| Weight (Approximate) | 31.97 lb (14500 g) |
| Miscellaneous | |
| Country of Origin | Taiwan |
FAQ
What processor does this product use?
This product uses the Intel processor for everyday performance and multitasking.
How much memory is installed?
It includes 8 GB of memory to support responsive multitasking and daily workloads.
What storage is included?
The system includes 0 of storage for applications, files, and everyday business data.
What graphics or display support is listed?
Display-related specifications help position Synology RackStation RS3621XS+ SAN/NAS Storage System - Intel Xeon D-1541 Octa-core (8 Core) 2.10 GHz - 12 x HDD Supported - 0 x HDD - (RS3621XS+) for the kind of viewing experience, readability, and workspace fit buyers may expect in business it/storage arrays & nas/nas storage system deployments.
What connectivity options are available?
Connectivity options include Gigabit Ethernet,10 Gigabit Ethernet, helping the product integrate into common office or home setups.
What operating system or platform is included?
The included operating environment is DiskStation Manager, which helps position the product for software compatibility, deployment planning, and day-to-day business use.