WESTERN DIGITAL Storage Enclosure 4U102 CRU Rail Kit Adjustable

The Ultrastar Data102 is installed into a rack using a toolless-attach rail system. Each rail is a two-piece assembly, with one rail that attaches directly to the chassis (inner rail) and another (outer rail) that attaches to the rack. The inner rail comes nested inside the outer rail and can be accessed by sliding it out of the outer rail. The outer rails attach to the rack and receive the chassis to support it inside the rack. The outer rails attach to vertical rack rails, which should be set between 32 in.-36 in. The toolless design allows an installer to attach the rails to a rack without any tools, which simplifies installation. Once they are attached, they can be secured with the included M5 screws and washers.