I bought the shell to protect a HP8770W. For a 17.3 "notebook, it is just the right size. In the height is still plenty of space, but I just use the plastic mat included in the delivery, which is supposed to hold only the sheath in the form. For a mouse or power supply is of course no capacity, but the shell is ideal for me to safely transport the notebook in a backpack or shoulder bag can. This will prevent the notebook from being scratched. A special feature is certainly worth mentioning the internal projection on the zipper, which is also the Notebook protect when it is in the envelope. After about a year, almost daily use the shell and the zipper is perfect. I would recommend this shell definitely.