Microsoft Windows Server 2012 OEM - CAL (5 Devices) This is a 5 devices Client Access License (CAL) Pack for Windows Server. This is not a Windows Server License. You will need to purchase or own a Server License for use with this CAL Every user or device accessing Windows Server requires a CAL This licensing pack allows 5 individual devices to access Windows Server 2008 R2, 2012 or 2012 R2 Good for companies that have more users than devices Platform: Windows Server