This Supermicro 1U Fixed Rail Kit (MCP-290-50404-0N) has an inner and outer rail. The rail kit is compatible with SC504 / 505. This Supermicro rail kit has been fully tested and validated by Supermicro to ensure the best quality.
This rail kit includes:
1 x SC504 Inner Rail (MCP-290-50402-0N)
1 x SC504 Outer Rail (MCP-290-50403-0N)