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Pair of silver metal sliding rails with mounting brackets and locking latches

Synology Inc.

Synology Inc. RKS-02 Sliding Rail Kit for rackmount NAS

SKU CH-BYVH-X2QCW MPN RKS-02

Sliding rail kit enables maintenance access for Synology rackmount NAS, fitting 450 mm posts, 480 mm panels and 610–890 mm depth

  • FeaturesSynology Rail Kit RKS-02 enables easy maintenance access for

Option RKS-02

  • Easy maintenance access for Synology rackmount models
  • Fits standard racks with post width of 450 mm or more
  • Adjustable mounting depth from 610 mm to 890 mm
  • Compatible with square holes at least 9.5 mm x 9.5 mm and round holes at least 7.1 mm
  • Supports FS, SA, RS and RX series across 14, 15, 16, 17, 18, 19, 20, 21 series

Sliding rail kit purpose

The Synology RKS-02 is a sliding rail kit designed for rackmount NAS units. It allows the chassis to extend outward on rails so administrators can service drives or internal components without removing the appliance from the rack. The kit is sold new and fits standard square-hole or round-hole posts.

Compatibility and rack constraints

This kit supports a wide range of Synology rackmount models across the FS, SA, RS and RX series from the 14 through 21 series. Buyers whose racks have mount-post spacing below 450 mm, panel width below 480 mm, or mounting depth outside the 610 mm to 890 mm range cannot use this kit. Square-hole posts smaller than 9.5 mm or round-hole posts smaller than 7.1 mm are also unsuitable.

Deciding specification

The critical measurement is the rack mounting depth, which must fall between 610 mm and 890 mm for the rails to lock securely. If the cabinet depth is shorter or longer than this window, the RKS-02 will not install correctly regardless of model compatibility.

Highlights

  • Easy maintenance access for Synology rackmount models
  • Fits standard racks with post width of 450 mm or more
  • Adjustable mounting depth from 610 mm to 890 mm
  • Compatible with square holes at least 9.5 mm x 9.5 mm and round holes at least 7.1 mm
  • Supports FS, SA, RS and RX series across 14, 15, 16, 17, 18, 19, 20, 21 series

Specifications

BrandSynology
ModelRKS-02
FeaturesSynology Rail Kit RKS-02 enables easy maintenance access for Synology rackmount models.
Installation requirements:
Mount post width must be equal to or greater than 450 mm
Panel width must be equal to or greater than 480 mm
Rack mounting depth: 610 mm to 890 mm
Rack mounting hole support:
- square hole: at least 9.5 mm x 9.5 mm
- round hole: at least 7.1 mm
Compatibility:
- FS series: FS3400, FS3017, FS2017
- SA series: SA3400, SA3200D
- 21 series: RS4021xs+, RS3621xs+, RS3621RPxs, RS2421RP+, RS2421+, RS1221RP+, RS1221+
- 20 series: RS820RP+
- 19 series: RS1619xs+, RS1219+, RS819, RX
Shipping weight3.86 kg
Package size861 × 98 × 69 mm

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Questions about this item

What rack post width and depth does the RKS-02 sliding rail kit require?

The kit fits racks with a mount post width of at least 450 mm, a panel width of at least 480 mm, and a mounting depth between 610 mm and 890 mm.

Which rack hole types are supported, and what is the minimum size for each?

Square holes must be at least 9.5 mm x 9.5 mm and round holes at least 7.1 mm in diameter for the rails to mount correctly.

Will the rails need periodic adjustment or replacement parts after installation?

No scheduled maintenance or replacement parts are required; the sliding rails are a passive mechanical kit designed for the life of the compatible NAS.

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