Bulk products may or may not come with some of the niceties of the retail version since they were not originally designed for the retail market. In the PC industry, many OEM products are offered directly to consumers to pass on savings. For example, an OEM drive is bulk packaged and may or may not come with cables, a manual, or software; this makes it significantly cheaper than the retail version. See link:http://lib.store.yahoo.net/lib/3btech/itemcondition.html