Windows Server 2008 - 20 Device CALs OEM

Note: this is an add-on license; it is not a stand-alone product. This authorizes an additional 20 devices to access your Windows Server 2008 software. Purchasing Device CALs may make more sense if your company has multiple-shift workers who share devices. User CALs might make more sense if your company has a need for employees to have roaming access using multiple devices like a laptop and handheld computer.