Usb Peripherals - Dell PowerEdge R820 Technical Manual

Table 31 lists the spacing dimensions for the R820 sliding and static rails.
Rail
Product
identifier
B6
R820
B4
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 are supported through the front and back USB ports on the R820. These ports are
USB 2.0 compliant.
49 PowerEdge R820 Technical Guide
Rail adjustability range (mm)
Rail type Square
Min Max
Sliding 676 868
Static 608 879
Round Threaded
Min Max Min Max
662 861 676 883
594 872 604 890
Rail depth (mm)
without with
CMA CMA
714 845
622 —