I just wanted a backup storage device to shuttle files sdcz6-4096rb computers in different locations work, school, home. In fact, it adds to the sdcz6-4096rb length of the device, since it must now house the USB socket and the mechanism to retract it.įinally, I removed the U3 software because I had no use for it. I don't see the retractable design as an improvement, frankly. I went so far as to remove it altogether and replace it with a sturdier ring. The key chain loop is a flimsy little metal ring attached to one end - one good tug and your USB drive will be quickly separated from the rest of your key chain and lost. Unlike the previous models, this one is completely plastic and feels very cheaply made.