Bought for a laptop 15 ", there is ample room for all put: PC, transformer, mouse + info bcp accessory (dry air bomb, installation CD, screw ...) and 1 notebook. There are 3 compartments inside, 2 full width + 1 with closure, side back pocket. I go to a PC 17 ", it goes up but not in the back side because of the seams, but no matter simply reverse my storage and no problems.