Kingston DataTraveler Locker+ USB Flash Drive

The test system used in this review was an HP dc7900. The computer came equipped with an Intel Core 2 Duo E8400 3.0GHz CPU, 2GB of DDR2 800MHz memory, Seagate Barracuda 7200.10 ST3250310AS 250GB SATA hard drive, NVIDIA Quadro FX570 256MB PCIe graphics card and Intel 82567LM-3 gigabit network card. For the operating system, I installed a fresh copy of Windows 7 Enterprise.

To test the performance of the DataTraveler Locker+, I ran a series of benchmarks using CrystalDiskMark 3.0, HD Tach RW 3.0.4.0, ATTO Disk Benchmark 2.43 and and SiSoftware Sandra Lite 2010.SP2. To get a feel for the "real world" performance, I also copied and pasted 500MB of random files and directories in Windows Explorer.

CrystalDiskMark 3.0:

First, I ran a few quick tests using CrystalDiskMark. This benchmark tool measures the performance of a storage device by testing its sequential read and write speeds as well as its random read and write speeds using blocks 512K and 4K in size.

Kingston doesn't really say what kind of speeds the DataTraveler Locker+ is capable of. Using CrystalDiskMark we can see that the drive is able to read at 23 MB/s and write at nearly 7 MB/s.

HD Tach RW 3.0.4.0:

Next, I used HD Tach to test the Locker+'s read, write and burst speeds as well as its seek times and CPU usage.

The performance here was very similar to what we saw with CrystalDiskMark. Looking at the screenshot above, you can see that the DataTraveler Locker+ had average read and write speeds of  22.3 MB/s and 5.4 MB/s, respectively, as well as a burst speed of 23.3 MB/s.

ATTO Disk Benchmark 2.43:

I also used ATTO Disk Benchmark to test the Locker+'s sequential read and write speeds. The test was run using blocks ranging in size from 0.5KB to 8192KB and the total length set to 256MB.

When tested with ATTO, the DataTraveler Locker+ topped out at nearly 23 MB/s when reading and 6.7 MB/s when writing.

SiSoft Sandra File System Benchmark:

While I am not a big fan of SiSoftware Sandra's optical drive benchmarks, it is a great tool if you want to test a system's performance quickly and easily. One of Sandra's more useful tests is the File System benchmark. This benchmark gives each drive an overall score, or "Drive Index," based on the results of its read and write tests.

SiSoftware Sandra Removable Storage/Flash Devices Benchmark:

Designed with removable storage and flash devices in mind, this benchmark tests a drive's read, write and delete performance using six different file sizes (512 Bytes, 32kB, 256kB, 2MB, 64MB and 256MB).  The results are then given in both operations per minute and the corresponding net transfer rate in kB/second. This benchmark also computes an "Endurance Factor," representing the wear and life expectancy of flash devices.

The DataTraveler Locker+ did not perform as well as the other drives when writing. Even with larger files, it reached a maximum speed of only 5,330 kB/s.

As I mentioned above, Sandra also expresses performance in operations per minute. To keep things simple, I've limited the results to the combined index and the total number of read/write/delete operations for each file size.

The Endurance Factor represents the wear and life expectancy of a flash device. According to SiSoft, this number is computed by "dividing the average performance (normal condition, i.e. sequential write) to the lowest performance (high-stress condition, i.e. same block re-write)."

"Real World" Benchmark:

To test the "real world" performance of Kingston's new flash drive, I copied and pasted 500 MB worth of randomly generated files and directories. All of the files are between 10 bytes and 32MB in size and no more than four directories deep.

The DataTraveler Locker+ had no problems holding its own against the drives from SanDisk when reading. Unfortunately, it also had the second highest writing time out of the four drives here.

Final Thoughts:

The Kingston DataTraveler Locker+ is a good choice for the consumer or business looking for an affordable way to secure mobile data and keep it out of the wrong hands. To protect the data, the drive stores everything in a hardware-encrypted, password-protected partition. Access to to this partition is controlled by embedded software that is easy to use and works on both Mac and Windows platforms. On the other hand, if performance is a concern, the DataTraveler Locker+ is probably not for you. While the drive held its own when reading, its write speeds were quite slow at times.

The DataTraveler Locker+ is available now in 4GB, 8GB, 16GB and 32GB capacities. Suggested retail prices range from $36 to $200 depending on the size. However, the drive can be picked up for considerably less from Amazon or through some of the vendors on PriceGrabber.

Highs:

• Mandatory security on all files
• Hardware based 256-bit AES encryption
• Includes "lockdown" mode for increased security
• Compatible with Windows 2000/XP/Vista/7 and Mac OS X
• Five year warranty
• Reasonably priced

Lows:

• Slow write speeds
• Not bootable