Can I trust Amazon when the seller's name is a real brand name?

I am about to order HP Pavilion p6-2120 Desktop (Glossy Black) from Amazon, and I wonder if it's fake or not. HP Pavilion p6-2120 Desktop (Glossy Black)'s seller name is HP, which is the name of the company. Can I trust them?

I saw one seller of a new version of that by HP product
Brandnewdealsusa
Feedback Rating:
4.8 stars over the past 12 months (64 ratings)

I would have to say it's not a high target counterfeit item like sneakers and hand bags, Amazon i better than most marketplaces in keeping their sellers clean, though some do ship direct from China. You will probably see more normal shipping info.