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Black metal cable management arm with sliding rails and cable clips, mounted on a rack rail kit

Synology Inc.

Synology Inc. CMA-01 Cable Management Arm for Rackmount NAS

SKU CH-R9AZ-G631W MPN CMA-01

Organises data and power cables, optimises rack space and allows rear access when mounted on compatible Synology rail kits

  • Key featuresSynology Cable Management Arm CMA-01 allows you to organize
  • Organises data and power cables for a tidy rack
  • Optimises rack cabinet space with compact arm design
  • Enables proper rear access for easier maintenance
  • Attaches easily to compatible Synology RKS-02 rail kits
  • Requires mount posts at least 450 mm wide, 125 mm deep, 41 mm high

Cable organisation for rack cabinets

The Synology CMA-01 cable management arm organises data and power cables inside a rack cabinet. It attaches to compatible Synology rail kits to keep wiring tidy and preserve access to the rear of the system. The arm helps optimise cabinet space by routing cables away from airflow paths.

Installers with compatible rails and sufficient

This arm suits administrators deploying Synology RKS-02 rail kits who need structured cable routing. It is not for cabinets where mount posts are narrower than 450 mm, shallower than 125 mm, or lower than 41 mm. Buyers using other rail systems or open-frame racks without posts should look elsewhere.

RKS-02 rail kit compatibility

The CMA-01 is designed exclusively for the Synology RKS-02 rail kit. No other rail kit is supported, so the arm will not mount without it. Verify the rail kit model before purchase.

How it compares

Measured against everything we stock in Rack-Mounted NAS Servers, at today’s prices. Recalculated every night.

Price $58.99
Cheaper than about 99% of the 763 comparable items (median $6,564.99).

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Specifications

Product
Brand nameSynology
Model nameCMA-01
Size & build
Shipping weight0.77 kg
Package size511 × 180 × 69 mm

Questions about this item

Do I need a specific Synology rail kit to install this cable management arm?

Yes, the CMA-01 is designed to attach to the Synology RKS-02 rail kit for supported rackmount NAS units.

Will this arm work if my rack posts are spaced closer than 450 mm in width?

The mount posts must be at least 450 mm wide, so narrower post spacing will prevent installation.

How can I verify the arm is correctly fitted after installation?

Cables should route cleanly through the arm, the NAS must slide fully into the rack without binding, and rear access should remain clear for maintenance.

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