Synology RX1223RP 2.5/3.5" SATA 12-bay HDD/SSD enclosure

Running out of space on your server can halt projects and frustrate users. The Synology RX1223RP 2.5/3.5" SATA 12-bay HDD/SSD enclosure lets you add up to 96 extra bays without shutting down, giving you seamless, on-the-fly capacity growth for any workload.

Usages of a 12-bay HDD/SSD enclosure

Ideal for data-intensive environments, this enclosure lets you expand storage for backups, media libraries, virtual machines or large-scale databases while the host remains online, keeping daily operations uninterrupted.

Benefits of Synology HDD/SSD enclosure

• No downtime: Online expansion means you never have to stop services to add drives.
• High reliability: Redundant power supplies keep your data accessible if one source fails.
• Easy maintenance: Hot-swap trays and modular fans let you replace components quickly.
• Simple setup: Plug-and-play design gets you running as soon as it’s connected.
• Centralised control: Manage everything through Synology DiskStation Manager’s intuitive interface.

Synology HDD/SSD enclosure

Choosing this enclosure over a basic chassis gives you true enterprise-grade flexibility. You can link up to eight units for a total of 1.7 petabytes of raw storage, all managed from a single DSM console. The built-in cooling system and redundant power ensure continuous operation even in demanding data centre conditions, while the compact 2U rack-mountable design fits neatly into standard server racks.

The enclosure supports both 2.5-inch and 3.5-inch SATA drives, letting you mix SSDs for speed-critical tasks and HDDs for bulk capacity. With a single mini-SAS HD cable included, connectivity is straightforward, and the unit complies with UL, FCC and other international standards for safety and performance.

Key Features of a 12-bay HDD/SSD enclosure

• Drive bays: 12 hot-swap bays (2.5"/3.5") - flexible drive mix for any workload.
• Power redundancy: Yes, 1+1 scheme - continuous operation if one supply fails.
• Power supply: 2 × internal units - reliable power delivery.
• Power consumption: 93.59 W operational - efficient energy use.
• Cooling: 4 × 80 mm fans - maintains optimal temperature under load.
• Dimensions: 3.5 in H × 16.9 in W × 27.2 in D - fits standard 2U racks.
• Temperature range: 32 °F - 95 °F - operates in typical data-centre environments.
• Sound emission: 54.3 dBA - quiet enough for office settings.
• Connectivity: 1 × expansion port - simple link to host server.
• Included cable: 1 × mini SAS HD - ready for immediate installation.

Specifications