The ThinkStation C-Series, D-Series Rail Kit lets you quickly install the ThinkStation C20, C20X, D10, D20 workstation into a datacenter rack enclosure.Fits most 19-inch four-post ''EIA Standard'' cabinet style racks with either square or round mounting holes Telescoping slide rails snap quickly and easily into the rack Bayonets and handles attach easily to the ThinkStation C20, C20X, D10, D20 with a Phillips screw driver Handles let you slide the system into and out of the rack for ease of service No special bezels required Three-year warranty Allows technicians to install the ThinkStation with a more secure rail system as opposed to a shelf For more information on options, including compatibility, go to: www.lenovo.com/accessoriesguide