Apple Xserve Intel (Late 2006) - Manual (Page 8)

8 Chapter 1 Installing the Xserve
Tools and Parts You’ll Need
 A medium-size (#1) Phillips screwdriver
 The slide rails, rail extensions, and alignment tool that come with the Xserve
Short extensions for racks
24 to 29 inches deep (2)
Rails for use with racks
of all depths (2)
Alignment guide
Long extensions for racks
29 to 36 inches deep (2)
Enclosure key