Works fine in the MacBook Pro 15 "2011 (early). Instructions for installation are in the manual of the Macbook Pro, and on the Internet (are most comfortable are the video tutorials which can be found in sufficiently large numbers in the video sharing sites). An important tool for installation is a screwdriver Philips 00 (which does not mean that the screwdriver from Philips must be only the size standard is apparently like that. My screwdriver this size was present in a precision mechanic kit from the hardware store. However, it has since then not as a large non-slip surface for the screwdriver to hold, as if you have a proper screwdriver of this size, but also goes)
