SanDisk SSD Plus SDSSDA-120G-G25 120GB Solid State Drive for $44.99 shipped. Here is a screenshot for reference. Alternatively, it is available at Amazon for $44.99 shipped. It features up to 520 MBps read and 180 MBps write speeds and SATA Revision 6 Gbit/s interface. Most places have it for about $49.