i did not bouhgt it. my friend had broken macbook and he give me this ssd and i thought it it good idea to put it in my mac and make it fasterIt's not mSATA, it's PCI-e. You can maybe find an adapter here but it might not fit in your MacBook Pro, as the caddys are a little larger than standard SATA HDDs: http://www.microsatacables.com/drive-adapters-and-drive-converters/apple-ssd-adapter
Out of interest, why did you buy a MBP 2015 SSD? If you put that in a 2012, it won't get anywhere near the 2GB/s read/write speeds as the 2012 has a 6Gb/s SATA III bottleneck, so you'd be better off returning it and buying a conventional SATA SSD.
i did not bouhgt it. my friend had broken macbook and he give me this ssd and i thought it it good idea to put it in my mac and make it faster
as i understand it is impossible thanks for your answers!You'd be better off selling it as they go for a fortune, because they're proprietary to Apple. Especially with it being the 2015, it'll go for a higher price due to the much quicker Flash speeds.
You could probably buy 3 SATA SSDs from the sale price!