The Dell 2U ReadyRails Sliding Rail Kit (with part numbers 0FYK4G/Right side and 061KCY/Left side) provides tool-less mounting for 2U Dell PowerEdge servers in standard 19-inch 4-post racksTechnical Specifications

• Server Form Factor: 2U Rackmount
• Compatibility: Dell PowerEdge R720, R720xd, R730, R730xd (along with select 12th, 13th, and 14th generation 2U systems like the R520, R530, R540, R740, and R820)
• Mounting Type: Tool-less installation for square and unthreaded round hole 4-post racks (compatible with all generations of Dell racks). Supports tooled mounting in 4-post threaded holes via an optional adapter bracket kit.
• Extension Type: Full rail extension allowing the server to be pulled completely out of the rack for easy internal component may include manufacturer's original specs and serve only as a guideline - Please contact us for additional questions****