I am an agile practitioner since I started working in the IT industry.
I am a new Scrum Master and this will be my first time to use Microsoft Team Foundation Server as an Agile Project Management Tool (actually, this is my first to use it ever).
With my previous scrum teams, usually, our Product Backlog is just composed of features the product owner (or even maybe the team for technical stories and debts) wants but with TFS's default Scrum Template, there is a separate board for Features and Backlog Items and it seems that a Backlog Item belongs to a specific Feature.