An "open box" is a new product that simply has an open original package for a variety of reasons. The product is, as already mentioned, in a new condition and contains the same equipment as all of our products.
A variety of reasons would be for example a damaged box from delivery to our warehouse and was repacked, checking on our products, etc. It means just that: the package has been opened. It can be that it was a mistaken order and it was sent back to us.
Whatever the reason an item has been labeled "open-box," these products usually get an inspection to make sure they're working before they're sold. This could be a thorough check of the product's functionality, or the inspection could be as basic as plugging the item in to make sure it powers on.
Open Box products have a regular warranty unless otherwise stated in the product listing.