Rack Rail Specifications; Usb Peripherals; Table 29. Rail Adjustability Range - Dell PowerEdge T420 Technical Manual

Rack rail specifications

Table 29 lists the spacing dimensions for the T420 sliding rails.
Rail
Product
identifier
T420 C2
The adjustment range of the rails is a function of the type of rack in which they are being mounted.
The min-max values listed above represent the allowable distance between the front and rear
mounting flanges in the rack. Rail depth without the CMA represents the minimum depth of the rails
with the outer CMA brackets removed (if applicable) as measured from the front mounting flanges
of the rack.

USB peripherals

USB peripherals are supported through the front and back USB ports on the T420. These ports are
USB 2.0 compliant.
48 PowerEdge T420 Technical Guide
Table 29. Rail adjustability range
Rail adjustability range (mm)
Rail type Square
Min Max
Sliding 686 756
Round Threaded
Min Max Min Max
672 749 686 771
Rail depth (mm)
without with
CMA CMA
760 840