IIRC it includes the LNB, Y adapter, an SW21, and a form for a "bill credit" from Bell.
"Bill credit" is in quotes because we all know how bad Bell is for actually issuing credits.
In theory by buying this from Bell you would eventually get a good chunk of your money back. Not everybody can put a post onto a forum and have 4 offers of a free LNB.
It is intended for people who bought 3120 and 4120 packages within the last 5 years. The dishes that came with those were the same as the ones that come with the 6120, 9220, and 9242; just with only 1 LNB in the box.