Synology RackStation RS3621RPxs 12-Bay NAS Enclosure

Overview

The Synology RS3621RPXS is a rack-mountable 12-bay NAS enclosure designed to provide reliable, high-speed shared storage for businesses and organizations. Powered by a six-core Intel Xeon D-1531 processor running at 2.2 GHz and equipped with 8 GB of error-correcting DDR4 memory, it handles demanding workloads such as large media file editing, virtual machine hosting, and database management with ease. The system delivers sequential read speeds up to 4718 MB/s and nearly 189,000 IOPS, ensuring fast file transfers and responsive performance even under heavy multi-user access.

Key features

• 12 drive bays compatible with both 3.5-inch and 2.5-inch SATA drives, offering flexible storage options.
• Redundant 500 W hot-swappable power supplies maintain continuous operation in case of power unit failure.
• Four Gigabit Ethernet ports support link aggregation and network failover to maximize throughput and reliability.
• Two PCIe Gen 3.0 slots allow for expansion with 10 GbE network cards or NVMe cache adapters to boost network speed and storage responsiveness.
• Supports multiple RAID configurations (0, 1, 5, 6, 10, Basic, JBOD) to balance performance and data protection according to your needs.
• Btrfs file system enhances data integrity with snapshot capabilities and self-healing features that prevent silent data corruption.
• Expandable chassis design supports up to 36 bays with two additional Synology expansion units, allowing your storage to grow with your business.
• Runs on Synology’s DiskStation Manager OS, providing an intuitive web-based interface for centralized management of backups, file sharing, and virtualization environments.

Key specs

• Processor: Intel Xeon D-1531 six-core 2.2 GHz
• Memory: 8 GB ECC DDR4, expandable up to 64 GB
• Drive bays: 12 (3.5-inch or 2.5-inch SATA)
• Sequential read speed: up to 4718 MB/s
• IOPS: up to 189,098
• Power supplies: dual 500 W redundant, hot-swappable
• Network ports: 4 x Gigabit Ethernet
• Expansion slots: 2 x PCIe Gen 3.0
• RAID support: 0, 1, 5, 6, 10, Basic, JBOD
• File system: Btrfs with snapshot and self-healing

Connectivity and compatibility

The RS3621RPXS offers versatile connectivity options to fit into various network environments. Its four Gigabit Ethernet ports can be combined for higher bandwidth or set up for failover to ensure uninterrupted access. The two PCIe Gen 3.0 slots provide room for upgrading to 10 GbE network cards, which is ideal for high-speed data transfers in demanding office or studio settings. This NAS supports centralized backup and file sharing for Windows and Linux servers, virtual machines, as well as cloud services like Microsoft 365 and Google Workspace, making it a flexible choice for mixed IT environments.

Performance and reliability

Designed for continuous operation, the RS3621RPXS includes redundant power supplies that can be swapped without downtime, ensuring business continuity. The Intel Xeon processor and ECC memory work together to maintain data accuracy and system stability during intensive tasks. The Btrfs file system adds an extra layer of protection by enabling snapshots and automatic data repair, which helps prevent data loss and corruption. These features make the unit well suited for professional teams handling critical data and large workloads.

Ideal uses and environments

This NAS enclosure fits well in environments where fast, reliable shared storage is essential. It is a strong choice for design studios managing large media files, IT departments running virtual machines, and businesses requiring centralized backup solutions. Its scalability and robust data protection features also make it suitable for growing companies that need storage solutions capable of expanding without replacing the entire system. The RS3621RPXS balances performance, capacity, and ease of management to support a wide range of professional applications.