Like most 12-South products, this looks the part of a proper Apple accessory and is well constructed. However, I was a little disappointed that once installed it seemed a little flimsy. I bought the backpack to be a HDD holder on the back of my iMac 27". It installed OK, but the clips that attach the unit to the base of iMac pedestal are not tight enough. I had to shim them with a little piece of plastic to make a snug fit. YMMV.