User Manual

● Square-hole rack adjustment range (3.5-inch configuration): 681-868 mm
● Round-hole rack adjustment range (2.5-inch configuration): 617-861 mm
● Round-hole rack adjustment range (3.5-inch configuration): 667-861 mm
● Threaded-hole rack adjustment range (2.5-inch configuration): 631-883 mm
● Threaded-hole rack adjustment range (3.5-inch configuration): 681-883 mm
The sliding rails allow the system to be fully extended out of the rack for service. They are available with or without the optional
cable management arm (CMA).
Figure 16. Sliding rails with optional CMA
Ready Rails Static Rails for 4-Post and 2-Post Racks
● Support tool-less installation in 19-inch EIA-310-E compliant square or unthreaded round hole four-post racks including all
generations of Dell racks.
● Support tooled installation in 19-inch EIA-310-E compliant threaded hole four-post and two-post racks.
● Minimum rail mounting depth: 622 mm
● Square-hole rack adjustment range: 608-879 mm
● Round-hole rack adjustment range: 594-872 mm
● Threaded-hole rack adjustment range: 618-898 mm
The static rails support a wider variety of racks than the sliding rails. However, they do not support serviceability in the rack and
are thus not compatible with the CMA.
Figure 17. Static rails
Cable Management Arm (CMA)
The optional cable management arm (CMA) for the PowerEdge R350 organizes and secures the cords and cables exiting the
back of the server. It unfolds to allow the server to extend out of the rack without having to detach the cables. Some key
features of the PowerEdge R350 CMA include:
● Large U-shaped baskets to support dense cable loads.
● Open vent pattern for optimal airflow.
Rack, rails, and cable management
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