Synology Caddies

CADDY for System Maintenance and Upgrades

The CADDY category covers refurbished SYNOLOGY disk trays and caddies used to mount and hot-swap drives in compatible Synology rack and NAS platforms. Keeping the correct tray type on hand is essential when you need to replace a failed disk quickly, standardise spares across sites, or expand an existing storage pool without changing the chassis.

These parts are commonly used in professional environments running NAS systems for file services, backup targets, surveillance storage, and virtualisation repositories. When a tray is missing or damaged, the right caddy helps ensure proper drive seating, airflow and serviceability—especially in dense rack deployments where quick maintenance matters.

Keeping Synology storage serviceable across installed bases

Synology environments often stay in production for many years, and tray compatibility can vary by chassis generation and model. In this category you’ll find multiple tray families (for example TYPE R5, TYPE D7, and several R-series variants), supporting different rackmount lines and drive bay formats. This is particularly important when you are maintaining mixed fleets across branch offices, warehouses, or colocation racks.

If you are building a complete spare-parts kit around your storage platform, it can be useful to align caddies with other SYNOLOGY components you already stock, so your technicians can restore service quickly and consistently.

Technical fit: tray types, bay formats, and operational considerations

• Multiple tray type families (e.g., TYPE R5, TYPE D7, and R-series trays) for matching the exact chassis generation and bay design.
• LFF tray options in this range for 3.5-inch drive bay deployments where capacity-focused HDDs are common.
• Model-specific compatibility (for example, certain trays are referenced for RS3613/RS3614/RS3617 and related systems) to reduce the risk of ordering the wrong mechanical fit.
• Designed for serviceability and fast replacement cycles, for minimising downtime during disk swaps and maintenance windows.
• Support varies by enclosure and tray revision, for ensuring correct latch/handle design and proper drive alignment.
• Useful for standardising spares across operations teams, to streamline field service and depot repair workflows.

Because tray revisions can look similar while fitting differently, it’s best to validate the tray “type” and the target chassis before ordering. If you are also scaling capacity externally, consider pairing your tray planning with compatible EXPANSION units to keep your storage growth path consistent.

Sourcing refurbished CADDY stock from Denmark

Direct Hardware Supply is an international B2B supplier of refurbished IT hardware, shipping worldwide from Denmark. All refurbished units are cleaned and tested by technicians before being added to stock, helping you source reliable spares for ongoing operations and lifecycle extension.

Standard products include a one-year warranty from the date of purchase (batteries, tape drives and tape libraries include a three-month warranty), and extended warranty options are available on request. To complete maintenance kits for Synology platforms, you may also want to source related spares such as PSU units for power redundancy, FAN replacements to maintain cooling performance, and MEMORY upgrades where supported.