I just purchased one of Sandisk Extreme USB 3.0 drives to use it with Linux live or from time to time install Windows on laptops that does not have dvd drive. I have few pendrives already but none of the is as fast as this one so I thought it will save lots of time but… at the moment it took too much of my time to figure it out how to make it bootable. I use Windows 7 USB DVD Download Tool or Universal-USB-Installer-22.214.171.124 that works everytime with other pendrives but not this one.
I even tried to restore image of other usb to this one with USB_it tool so both are exactly the same but only other one will boot fine where Extreme 3.0 is not even visible in bios boot menu.
I noticed that blue led light on the drive does not blink during bios post just only when it is too late.