This is a rail set correct? Only need quantity 1 to mount a server? Thanks.

Correct, this kit comes with two rails, one for each side of the server. The square holes in the rails lock into the metal tabs on the side of the Supermicro server. The rails then lock into the square holes in your server rack. Quick and easy installation.

What is the best seller ranking of this product?

This product is ranked #1 in Server Racks / Cabinets.

Is this square holed?

Yes, these are square holed. There is an adapter kit for round holes available: MCP-290-00060-0N

$115^.00

$115.93

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Supermicro MCP-290-00057-0N Mounting Rail

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Miscellaneous

Additional Information:
- 26.5" to 36.4" rail set
- Quick Release for 4U 17.2" W
Compatibility:
Supermicro 846E1-R710B SuperChassis

Best Seller Ranking	#9 in Server Racks / Cabinets

Additional Information
First Listed on Newegg	April 21, 2026

Warranty & Returns

Warranty, Returns, And Additional Information

Warranty

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Return Policies

Return for refund within: 30 days
Return for replacement within: non-replaceable
This item is covered by InterPRO Return Policy

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