Dell PowerEdge T620 Technical Manual page 36

The Dell PowerEdge T620 is a rackable tower server. The sliding rail system for the T620 provides
tool-less support for racks with square or unthreaded round mounting holes including all
generations of Dell racks. Compared to the T610 sliding rails that required adapter brackets, the
sliding rails for the T620 offer support for threaded hole racks with the ReadyRails II mounting
interface. The T620 supports only sliding rails; static rails not supported.
The optional cable management arm (CMA) can be mounted on either the left or right side of the
sliding rails without the use of tools for fast and easy deployment.
The sliding rail system allows you to fully extend the server out the rack for easy access for service.
The rails ship in the tool-less mounting configuration, but can be converted to the tooled
configuration very quickly and easily.
The sliding rails are available with or without the optional CMA. Figure 10 shows the sliding rails with
the optional CMA.