Lexar JumpDrive Lightning

Lexar's only entry in this roundup is their top of the line JumpDrive Lightning. The high end Lightning drive is only available in two sizes: 1GB and 2GB.

Lexar advertises 256-bit AES encryption support, and is implemented similarly to Kingston's DataTraveler Elite. If you use Lexar's bundled tool to partition your drive into a secure and a public partition, anything stored on the secure partition goes through Lexar's 256-bit encryption engine. Lexar also offers support for you to encrypt individual files on your system, which can only be decrypted if you have your JumpDrive Lightning plugged into that system. Lexar improves functionality one step above and beyond Kingston by allowing you to mount both public and secure partitions at the same time, as separate drive letters.

The only downside to Lexar's drive is that the flash controller that Lexar uses does not have a hardware encryption engine, thus there is a significant performance penalty for reading/writing to your secure partition. The table below displays read/write speed for various file sizes to a Secure as well as a Public partition on the Lexar drive.

   0.5KB   32KB   256KB   2048KB   65536KB 
Read Write Read Write Read Write Read Write Read Write
Secure 984 4 14809 279 16990 1903 17033 4881 17476 8738
Public 1000 69 19099 3507 26176 11750 26624 14131 26214 15292

As you can see, reads are noticeably slower to the secure partition, as are writes, especially at smaller file sizes. In many cases, the performance of reading/writing to the secure partition is far less than half of working with the public partition. It's a major downside to the security benefits that Lexar offers.

The Lexar drive is a bit more stylish than what Kingston has to offer, but the downside to that is, of course, that it shows fingerprints and smudges much like an iPod. Lexar includes a polishing cloth to remove the blemishes, which although it works very well, it is still a pain that you have to do it. The case of the JumpDrive Lightning adds significant weight to the unit, which is another expense that you pay in order to support the style of the drive.

If you purchase the drive from Lexar's online store, you can get a free engraving on the unit itself, which is a nice option that's offered.

 Lexar JumpDrive Lightning
Sizes Available 512MB - 2GB
Lanyard Included No
USB Extension Cable Included No
Data Encryption Yes (Windows only)
Password Protection Yes (Windows Only)
Secure + Public Partitions Simultaneously Accessible Yes
Flash Controller ?
Flash Memory ?
Warranty Lifetime Limited

Kingston DataTraveler Elite Memina Rocket
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  • LightRider - Tuesday, October 4, 2005 - link

    Page 22 Shikatronics Manhattan

    quote:

    The drive ships with a lanyard and a USB extension cable, which makes the cap issue less of a hindrance
    USB Extension Cable Included No
    Data Encryption No
  • LightRider - Tuesday, October 4, 2005 - link

    Of course I make an error in my post pointing out an error...
    quote:

    Lanyard Included No
    USB Extension Cable Included No
  • phisrow - Tuesday, October 4, 2005 - link

    I'm glad to have some idea about real world performance specs, to the degree that the volatility of the market allows that, of these drives. Any chance that this, or future, reviews of this kind could test making the drives bootable. Some are easy, some are impossible, and some need some real voodoo to get them working. I'd love to know which is which these days.
  • johnsonx - Tuesday, October 4, 2005 - link

    Page 13:

    "although, neither is obviously full-proof."
  • yacoub - Tuesday, October 4, 2005 - link

    "From top to bottom, a AA battery, Kingston DataTraveler II drive, Kingston DataTraveler Elite."

    No, not even close.
    Elite is on top, DT2 is next, AA battery next, and 9-volt battery on the bottom.
  • TheInvincibleMustard - Tuesday, October 4, 2005 - link

    C'mon, I soooo posted that before you!

    :p

    -TIM
  • yacoub - Tuesday, October 4, 2005 - link

    What's with all the scratches on the Corsair Flash Voyager's USB connector?
  • TheInvincibleMustard - Tuesday, October 4, 2005 - link

    I was actually wondering that, too ... what did you do to that poor thing to take the cover off???

    All in the name of science, eh?

    TYPO: Pg 13 ... the caption for the "battery" picture doesn't correspond to the actual picture ... oh ... and just how OLD is that 9V Eveready? It looks like something out of the stonage in comparison to the other things in the picture ...

    -TIM
  • SpaceRanger - Tuesday, October 4, 2005 - link

    Stonage?? Sorry.. Couldn't help pointing out a typo in a "typo informative" post..

    /em hides now.
  • TheInvincibleMustard - Tuesday, October 4, 2005 - link

    :p

    And that's all I hafta say about that.

    -TIM

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