This Supermicro 2U-5U Rail Kit (MCP-290-00058-0N) has a short quick inner and outer rail release. The rail kit is compatible with various Supermicro chassis and can extend up to 27" in length. This Supermicro rail kit has been fully tested and validated by Supermicro to ensure the best quality. This rail kit includes*: •Inner Rail: 1 x MCP-290-00116-0N •Outer Rail: 1 x MCP-290-00114-0N *Individual SKUs not sold separately *All the installation instruction could be found in the chassis or system manual Manufacturer Supermicro Outer Rail Extendable Length 19.6” to 27” Rail Kit Type Rail Kits Designed For 2U-5U Compatible Chassis CSE-213, CSE-216, CSE-217, CSE-218, CSE-219, CSE-417, CSE-418, CSE-747, CSE-748, CSE-823M, CSE-825, CSE-825M, CSE-826, CSE-827, CSE-828, CSE-835, CSE-836, CSE-837, CSE-842, CSE-846, CSE-847, CSE-848, CSE-936, CSE-937, CSE-938, CSE-939 Mechanism Ball-Bearing (Support Round Hole Racks with Adapter MCP-290-00060-0N) Validated Systems SYS-2029U-MTNRV Search Terms MCP-290-00058-0N, MCP-290-00116-0N, MCP-290-00114-0N Warranty 1 year warranty Product Environmental Compliance RoHS and REACH compliant, details available upon request