Synology RXD1215SAS Drive Enclosure — 12-Bay SAS Expansion in a 2U Rack-Mount Chassis

Designed to empower growing storage environments, the Synology RXD1215SAS Drive Enclosure is a robust expansion unit engineered to scale your NAS or server capacity without compromising performance or reliability. Featuring a SAS host interface and a compact 2U rack-mountable chassis, this enclosure is ideal for data centers, IT rooms, and demanding workflows that demand high-density storage. With 12 drive bays capable of housing 2.5" or 3.5" drives, the RXD1215SAS provides a flexible path to expand capacity for backups, archives, virtualization datasets, media libraries, and sequential data workloads. Its sturdy construction and rack-ready design ensure convenient installation, tidy cable management, and predictable airflow for sustained operation in professional environments.

The RXD1215SAS is purpose-built to integrate smoothly into mixed environments, whether you’re expanding a Synology NAS ecosystem or extending a traditional server storage pool. The 12-bay enclosure delivers a straightforward path to scale storage capacity while preserving manageability and performance. By supporting multiple drive sizes, it enables you to optimize cost per TB and performance by selecting a combination of drives that suits your workload—ranging from high-capacity HDDs for bulk storage to faster drives for hot data. This makes the RXD1215SAS a versatile backbone for archival projects, media streaming libraries, database snapshots, and virtualization-accelerated workloads where large, sequential I/O is common. In addition, the SAS host interface provides dependable connectivity to the storage controller, enabling stable transfer rates and reliable operation during heavy transfer windows or disaster recovery tests.

• 12-bay expansion enclosure with support for up to 12 drives (2.5" and 3.5" bays) to dramatically boost storage capacity and preserve data organization across workloads.
• SAS host interface for fast, reliable data transfer between the enclosure and your NAS or server, delivering strong throughput for backups, cloning, and large file transfers.
• 2U rack-mountable design built for enterprise deployment, offering secure mounting, predictable airflow, and space-efficient integration in data centers and server rooms.
• Flexible drive compatibility accommodates both 2.5" and 3.5" drives, enabling you to tailor performance and capacity to your workload and budget.
• Safe installation with rack rails and a robust enclosure build ensure a tidy, serviceable expansion solution that minimizes downtime during installation and upgrades.

Technical Details of Synology RXD1215SAS Drive Enclosure

• Drive Bays: 12 total (supports up to 12 x 2.5"/3.5" drives)
• Interface: SAS host interface
• Form Factor: 2U rack-mountable enclosure
• Expansion Role: Designed to expand storage for NAS and servers
• Mounting: Includes rack-mount rails for secure installation

how to install Synology RXD1215SAS Drive Enclosure

Installing the RXD1215SAS is straightforward and purpose-built for reliability in professional environments. Follow these general guidelines to ensure a smooth, safe deployment that minimizes downtime:

• Prepare your rack space and confirm compatibility with your NAS or server chassis. Verify clearance, power availability, and cabling paths to support a clean installation.
• Mount the RXD1215SAS in a 2U rack using the included rails. Align the enclosure with the rails, secure it to the rack posts, and validate grounding and ventilation in the rack area.
• Install drives into the 12 bays as needed. Use appropriate drive trays and secure each drive properly, following drive insertion guidelines for 2.5" or 3.5" formats. Ensure consistent power and data cable routing to prevent interference and overheating.
• Connect the SAS host interface to the host controller or backplane in your NAS or server. Route cables neatly to avoid strain and ensure cables are not crimped or blocked by other components.
• Power on the system and configure storage within your NAS or server management interface. Create storage pools, configure RAID levels appropriate for your data protection and performance needs, and integrate the enclosure into your existing storage architecture.

Frequently asked questions

• Q: What is the RXD1215SAS used for? A 12-bay SAS drive enclosure designed to expand storage capacity for Synology NAS and servers, enabling scalable, organized, and reliable data growth.
• Q: How many drives can it hold? A: It supports up to 12 drives across 12 bays, with compatibility for 2.5" and 3.5" HDDs/SSDs where supported by the host system.
• Q: What interface does it use? A: It uses a SAS host interface to connect to the storage controller in your NAS or server for high-throughput data transfer.
• Q: Is it rack-mountable? A: Yes, the RXD1215SAS is a 2U rack-mountable enclosure designed for secure installation in data centers and IT rooms.
• Q: Does it come with mounting rails? A: The enclosure includes rack-mount rails to facilitate safe and straightforward installation in standard server racks.