You can download trial version of dbExpress driver for SQL Server to try using it.
Trial version of dbExpress driver is a fully functional Standard Edition, that has
the following trial limitations:
The latest version is 6.3.5 (20-Feb-2014). For a list of changes see the revision history.
Note: For the list of compatible versions please see Compatibility.
dbExpress drivers now support RAD Studio XE5!
dbExpress drivers now support RAD Studio XE4!
dbExpress drivers - the new Devart High Five program member!
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dbExpress drivers for other databases:
SQL Server data access in other technologies:
designed to aid SQL Server developers