As noted in other reviews for the 2GB, 4GB, 8GB or 16GB versions, this implementation of biometric passwords suffers from some limitations that would be deal-breakers were this a $100 unit. As it is, got two of them for just over $40.
Updated 2009-12-16 after weeks of use:
Some pros and cons that have received scattered mention:
Pro:
- tightens up Windows security by disabling "Fast User Switching" (that may also be a con if this is a multi-user PC)
- portable: tried 3 different JF220 USB Flash Drives (different models), each of them accepted the backup profile and entered the userid/password combination mapped to the fingerprint correctly
- simple setup, except for advanced functions
Con:
- cannot install on a multi-user PC and switch between userids, must "Log Out" or "Shut Down" from one ID before going to another
- locks out some system utilities sometimes (such as Taskmgr and Ctrl-Alt-Delete) not a clue yet why this happens sometimes (on different XP PCs) and not others
- locks up the Transcend manager tool when fetching "Favorites" and some other variations
- though release updates have appeared, they are not accompanied by any information on what fixes are included that I can locate
- for advanced functions, like Windows log-in using the JetFlash fingerprint reader, had to reboot XP twice (again on two different PCs)
- if you attempt to uninstall drivers and not use, there are remnants that may remain set in the registry, even using updated drivers
- can cause long delays and locking of Explorer even after uninstalling the Transcend drivers
Net: even for the price, especially of the 2GB Jetflash JF220, very little value, steer clear! Even if installing on a single user PC, or one where log-out/log-in between users, this product does not work well. And it is hard to disable the security features and reformat so that it can be used as plain USB device.