Average Bench: 33.6% (67th of 639)

Based on 5 user benchmarks.  Device: VID 059f PID 106c Model: LaCie XtremKey
Poor: 16%Average: 33.6% Great: 49%

Poor average bench

The Lacie XtremKey USB 3.0 32GB averaged 66.3% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.


Avg. Sequential Read Speed 139MB/s
Avg. Sequential Write Speed 54.9MB/s

Unknown consistency

There are too few samples to reasonably determine how consistently this USB perfroms. This result should be interpreted with caution.


Avg. 4K Random Write Speed 0.31MB/s
Avg. 4K Random Mixed IO Speed 0.43MB/s

Average Bench

(Based on 5 samples)
Min Avg Max
39.2 Read 139 211
38.3 Write 54.9 92.9
29.7 Mixed 44.9 94.4
37.6 SusWrite 53.2 82.8
84.4% 72.9 MB/s
Min Avg Max
2.2 4K Read 4.38 5.2
0 4K Write 0.31 0.4
0.1 4K Mixed 0.43 0.9
41.6% 1.71 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
20GB free, PID 106c
Operating at USB 3.0 Speed
SusWrite @10s intervals: 67 86 86 86 86 86 MB/s
Read 203
Write 92.9
Mixed 30.6
SusWrite 82.8
116% 102 MB/s
4K Read 5.2
4K Write 0
4K Mixed 0.9
50% 2.03 MB/s
20GB free, PID 106c
Operating at USB 2.1 Speed
SusWrite @10s intervals: 36 40 40 41 41 38 MB/s
Read 39.2
Write 38.3
Mixed 29.7
SusWrite 39.1
50% 36.6 MB/s
4K Read 5.1
4K Write 0.4
4K Mixed 0.1
36% 1.87 MB/s
30GB free, PID 106c
Operating at USB 2.1 Speed
SusWrite @10s intervals: 26 39 40 40 40 40 MB/s
Read 40.2
Write 38.7
Mixed 32.5
SusWrite 37.6
50% 37.2 MB/s
4K Read 2.2
4K Write 0.4
4K Mixed 0.5
39% 1.03 MB/s


MSRP ≈ $87 @ launch in Dec '12
AmazonUS $606 years
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We highlight the best USB flash drive in terms of balanced performance and value for money using current prices, sequential read, sequential write , 4k read and 4k write speed. The speeds are combined to form a single effective speed which measures performance for tasks such as copying photos, music and videos. Effective speed is adjusted by current price and capacity to yield value for money. Finally thousands of individual user ratings are used to validate our benchmark figures. [USBFlashPro]


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