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Lexar JumpDrive Secure II Plus 4GB - Lexar JumpDrive Secure II Plus 4GB

Andy Vandervell

By Andy Vandervell



Our Score:


Regrettably, there's nothing breezy about the performance of the drive. For testing we ran two sets of read and write tests to see how the drive performed with different kinds of files. The first was a simple Large File Test, a single 700MB video file and the other a more demanding Small Files Test, which consisted of just over 1GB of various files including documents, music files, images and plenty besides. Each test was performed three times, with an average time taken from the three and a speed rating (MB/s) derived from it.

In the write tests the Lexar was particularly disappointing, managing just 3.8MB/s in the Large File Test and 1.8MB/s in the Small Files Test. This trailed the Corsair Voyager GT by a massive margin, while also failing to match up to a generic memory key as well.

Things did improve a little in the read tests however, with 18.3MB/s in the Large File Test, while it was the quickest in the Small Files Test with 10.1MB/s. Still, this was the only area where the Lexar won out and even then it wasn't by any great margin. At the very least it means that it's relatively pain free to get lots of documents off the device, though it'll obviously take a good deal more time to get them onto the device in the first place.

Ultimately this lack of overall performance puts into the question the value of this drive. One can certainly get faster drives for less money, which will give more bang for your buck. Moreover, aside from the capacity meter the design is uninspired and not especially sturdy. Its file encryption may be impressive, but that data security isn’t worth much if the drive is damaged somehow.


Though the capacity meter is a nice idea, it's not quite as intuitive as it could be and the overall performance of the Lexar JumpDrive Secure II Plus is hardly breathtaking. Good file encryption software does add something extra, but otherwise this is a fairly ordinary device with a gimmick thrown in for good measure.


March 31, 2010, 11:45 pm


I was looking to secure my files on my old USB memory stick. So I got this product. Now all my data is lost! Here's why:

The Lexar security suite creates an encrypted zone (they call a vault). The vault can be up to 4GB and it is given the name "vault.lxv". Once you create this vault, the Lexar suite mounts it as a drive in windows (the memory stick is drive E, and the secure vault is drive F). You can then add all the files you want to the vault (drive F). Regardless of the size/number of files in the vault, it is always a 4GB file (or however large you specify). All is fine up to this point.

Because windows itself only sees a single file "vault.lxv" and not all the individual files inside, should this file get corrupted (say by your 4 year old yanking out the jump drive while you are using it) it can (and did) get corrupted. Now ALL your data that was inside the vault is garbage! And CAN NOT be recovered.

This can happen to any USB stick, but since you are usually only working with a few files at a time, only those few files get corrupted. But with the vault there is only ONE file, and any improper removal of the stick will (and does) corrupt the vault. Now all your secure data is instantly TRASH!

I called Lexar and they commented this can happen if the USB stick is improperly removed. They suggested a data recovery service (at $1 per MB, that 4GB vault is going to cost me $4,000 to recover)!!!

So I would DEFINITELY NOT recommend this product. It is too easy for the vault to get corrupted. I had a Cruzer Pro 1GB secure USB drive and never had this problem. So I'm not sure how that device is different. And yes, all my data is totally lost forever! Thanks Lexar!

Geoff Richards

April 1, 2010, 2:26 am

Sorry to hear about your nightmare. Your feedback is certainly food for thought for everyone.

I would also just add that "important data" should never only exist in one place. If one needs to use a USB stick for transport, make sure you save to a local HDD then *copy* to the stick to move it to another computer, and copy it to that PC.

If you create new documents straight onto a stick, and carry it around, you leave yourself vulnerable not only to data corruption (as above) but theft and / or loss.

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