To prove my point, take a look below - Kingston's DataTraveler 70 USB flash drive is available in 128GB form for just £5 from Amazon. That's some insane value for money for a handy drive that you ...
This feature, introduced with Windows 7, works with ATA, SATA, SAS, and USB drives. It allows you to group different types of drives (such as SSDs and traditional HDDs) into a single storage pool.