33 PowerEdge T320 Technical GuideTable 19 lists the supported rack types for the T320.Table 19. Supported rack typesProduct Railidentifier Mounting interface Rail typeRack types supported4-post 2-postSquare Round Thread Flush CenterT320 C2 ReadyRails II Sliding X XScrews are not included in the kit due to the fact that threaded racks are offered with a variety ofthread designations. Other factors to consider when deploying the T320 include the spacingbetween the front and rear mounting flanges of the rack, the type and location of any equipmentmounted in the back of the rack such as power distribution units (PDUs), and the overall depth ofthe rack.For detailed information about sliding rails, see theRack rail specifications in Appendix A. For more information on installing the T320 in a rack, see theRack Installation Instructions on Dell.com/Support/Manuals.Cable management armThe optional CMA organizes and secures the cords and cables exiting the back of the server andunfolds to allow the server to extend out of the rack without having to detach the cables. Some keyfeatures of the T320 CMA include: Large U-shaped baskets to support dense cable loads Open vent pattern for optimal airflow Ability to be mounted on either side Use of hook-and-loop straps rather than plastic tie wraps to eliminate the risk of cable damageduring cycling Low-profile fixed tray to both support and retain the CMA in its fully closed position Ability to mount the CMA and tray without the use of tools, due to snap-in designs