Even though hundreds of different products shipped with mSATA, the smallest SSD form factor for solid state drives, it didn't catch on as quickly as we expected. The high adaption issue doesn't have anything to do with supply or even a limited number of products with mSATA connectors. The low adaption can be blamed on education and advertising.
A large number of notebooks and ultrabooks in 2012 and 2013 shipped with an mSATA port under the keyboard, but most OEMs never advertised the feature. If your notebook was built to order from Dell, Lenovo, HP or one of the other big box OEMs, during the order process you were asked about installing a mSATA SSD. The SSDs offered were mostly for cache in a system that pairs a small SSD with a larger HDD. If you didn't choose to install the cache option, the OEMs would still send a system with the connector, they just wouldn't tell you about it.
Everyone I know wants more storage in their notebook, but most assume it's not possible. It's a notebook, there is only so much room. Wouldn't it be great to have a 256GB SSD and a 1TB HDD available on your mobile workspace? Chances are it IS possible, you just have to poke around to find the mSATA slot.
Today we're looking at the latest revision of the ADATA SX300, ADATA's flagship mSATA SSD. The SX300 uses the latest revision of the LSI SandForce SF-2281 controller, stepping B02. Let's take a look at the full specs.