The mSata SSD is SATA III but it's on a SATA II channel bus so it's a crying shame really. It's specs aren't so great for a SSD: $ sudo hdparm -Tt /dev/sdc
/dev/sdc:
Timing cached reads: 17146 MB in 2.00 seconds = 8579.95 MB/sec
Timing buffered disk reads: 810 MB in 3.00 seconds = 269.68 MB/sec