A server rack rail is used to mount servers in a 2-post or 4-post rack. There many types of sizes and models of server rails making it easy to find the perfect fit for your use case.
Types of server rails
OEM or server specific rails are tailored for your exact server ensuring an easy and secure fit. These hold servers using shoulder screws and j-slots, which are able to provide a secure fit while using a minimum amount of space. Because of the many different configurations of server chassis, these usually only work with a few or as little as one server model.
Universal rails hold servers by the corners, meaning that shoulder screws are not required and any server will fit within the rail’s criteria. Many server specific rails are only offered by the manufacturer at purchase or are discontinued within a set amount of years after release. Universal rails not only ensure that you will be able to mount any server, but have something to relay on if your OEM rail stops working years after it is purchased.