Introducing the MB882HX-1SB 2.5" SATA SSD Xpander Hybrid Adapter. Using a high speed 2.5" SATA SSD and a high capacity 3.5" SATA hard drive, you can combine them to create a new breed of species. Using our hybrid technology, we can take a moderate or 2nd generation 2.5" SATA SSD in combination with a mid to higher end 3.5" SATA hard drive which automatically creates "hybrid partition" and "storage partition". The "hybrid partition" doubles the capacity of the SSD drive and provides high performance in transfer rates. The storage partition gives you the remaining capacity of the hard drive* (the size of the 3.5" SATA hard drive minus "hybrid partition" size).