Testing The DataTraveler Ultimate 3.0 G3

The Testbed

Testing Methodology

We tested in Microsoft Windows 7 with the latest updates. We chose to use IO Meter 2008 as well as our own suite of test files. Here are the details of the two sets of test files we used :

• Large Files : 29 high-resolution photos (250,030,840 bytes)
• Small Files : 436 low-resolution photos (250,001,809 bytes)

All transfer rate tests were timed using a Seiko WC73-4000 stopwatch with a rated accuracy of 10 ms. A minimum of 3 test runs were performed, with additional test runs undertaken if the results were off by more than half a second. The closest group of 3 run times was averaged to obtain the final result.

The case temperature results were obtained using a Fluke 62 Mini infra-red thermometer. The Load temperature test was carried out after at least 5 minutes running IO Meter (512 KB sequential read), with IO Meter continuing to run. The drives were allowed to idle for a minimum of 15 minutes before the Idle temperature test was performed. A minimum of 5 test spots were examined on each case, with the maximum test result used.

Maximum Case Temperature

We monitored the surface temperature of 7 USB flash drives during their benchmarks. The following chart shows their operating temperature range, from idle to maximum load. Please note that instead of giving you the absolute numbers, we are showing the temperature delta, which is the difference between the actual temperature and the ambient room temperature.

Surprisingly, the Kingston DataTraveler Ultimate 3.0 G3 was a very cool drive. In fact, it was the coolest-running USB flash drive in this comparison, mainly due to its low case temperature while idling. This is likely due to the thicker case, which consists of the inner plastic case and the outer metal case. This reduces the amount of heat that is transferred out.

At full load, the outer metal case doesn't get really warm. When used with a USB 2.0 port, the case temperature merely rose by just 3.4 °C. That is the case temperature of an idling DataTraveler Ultimate 3.0 Gen. 2! Even when we used it with the USB 3.0 port, its case temperature only rose by 6.2 °C above ambient temperature. That makes it the coolest-running USB 3.0 flash drive in our comparison.

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