If you are buying online be sure to ask how they will pack the Mac Pro as the handles are fragile with all the weight of the computers and get crushed in. Even Apple had problems packing. I would brace the handles above and below with wooden blocks. If you are shipping be sure to use two boxes with foam between them, also. I don't know why Apple made these so likely to fail. I got two computers sent to me with bent or twisted aluminum handles and damage to the case where the sides are pushed out. Look online to see complaints, attempts at repair.