Compared to mSATA SSDs, M.2 PCIE SSDs have far more potential in the desktop market. mSATA has a much lower bandwidth limit than M.2. In fact, M.2 utilizes the PCIE lanes to transfer data which means much higher potential. Also, while mSATA is limited to its own little port, M.2 PCIE SSDs can be plugged into PCIE adapter cards. giving older systems a boost in performance, or it can provide an additional slot for fast storage when the main slot on the motherboard is already in use. Although M.2 PCIE SSDs currently come in x2, x4, how much faster are they in real life? That’s why we have the Plextor PX-G256M6e in our lab today to find out!