"OEM" stands for Original Equipment Manufacturer.
This means that the items that have the letters OEM in their description generally cannot be sold on their own and have to be bundled related products. OEM items are not supplied with manuals, cables, documentation, retail boxes, support and quite often no software or drivers.
Microsoft Windows OEM Software Policy - We are entitled to sell you a copy of Microsoft’s Windows OEM software if you are a System Builder, purchasing it with a new PC or purchasing components to build a new computer (a complete system). Please note that Microsoft is very stringent regarding the registration process of such systems and Mwave.com.au will not be liable for problems that are incurred during this procedure if you did not purchase the Windows OEM software to meet the above criteria.