Samsung PM841 we benchmarked and tested is the largest capacity mSATA available. The Samsung PM841 has thinner form factor of single PCB. The Samsung PM841 has read and write speeds of 556 MB/s and 336 MB/s respectively.
Samsung PM841 specs
Powerful SSD performance in a tiny mSATA form factor
Available in 128GB, 256GB, and 512GB
Features super-fast speeds – up to 520MB/s sequential reads
Class leading Samsung Controller and NAND
Ultrathin form factor provides lightweight mobility
Also check out Western Digital Ultrastar SSD800MH, SSD800MM, SSD1000MR SSD.
Samsung needs to make the public aware that the PM841 is a member of 840 pro family. It is a great that the PM841 is made using 21nm technology. You can buy 128GB for just 129 dollars from here.