Getting hardware information can sometimes be hard when writing in .NET, the Framework keeps many of the deails away from the developer.  One day I needed to know if a drive letter existed and what type of drive it was.  I found many ways to do this but the one I liked the best is extremely simple from a code perspective:

Assemblies:
System.Management
System.Management.Instrumentation

var drive = "C";
var disk = new ManagementObject("Win32_LogicalDisk.DeviceID=\"" + drive + ":\"");
disk.Get();
disk.Dump();