Supermicro tool-less rackmount rail kit for 17.2" width 4U+ server chassis (Rev. K4 and later) The rail length is adjustable from 26.5" to 36.4", quick-quick release. Mfg. Part Number: Supermicro MCP-290-00057-0N, brown box. Compatible with Server Chassis: Supermicro 4U Chassis: SC417, SC842, SC846, SC847, SC848 Supermicro 5U Server: 5086B-TRF
