Unfortunately, my MacBook Air had "innately" only 120GB on board. Since I use the Air only as a second computer, I thought that it should be enough. But far from it. Over time, more and more data have accumulated but then, so now an increase was needed urgently. This all-inclusive package from Transcend, even a layman with two left hands - thanks to detailed instructions - MacBook Air be easily upgraded. It's all there: SSD module, housing, USB cable, and even 2 quality screwdriver, without the conversion would not possible. The body kit incl. Clone the hard drive only took about 15 minutes (despite 110GB data!). Already I'm back right place on my "little" and additionally a 120GB flash drive. Unrestricted buy recommendation !!!