3U/4U Rail Kit for 17.2" width case, Length for ( 26.5" to 36.4" depth)
Quick Release 4U Rail Set ( inner rail + Outer Rail ) - Ball Bearing - for 17.2" width case, Length for ( 26.5" to 36.4" depth) - CSE-417 418 758 846 847 848 842 - Suppport Round hole Rack if with MCP-290-00060-0N (optional)