Sorry bout that, the question just came across like a homeowner asking the question at Home Depot or something.
The 3120XP is the largest chainsaw currently produced by any manufacturer. It is slightly larger than the Stihl 088 (I think) and is about 120cc displacement. This is not a saw for someone without YEARS of experience running saws, it can KILL you without even hesitating. The vast majority of people in the industry rarely need a saw this large.
If you had read ANY threads on this forum even casually mentioning the 3120, you would quickly realize that it is a professional saw, not for homeowners or amateurs. But like most uninformed, you instantly posted a silly question without even reading 2-3 threads first.