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Average Bench: 26.1% (145th of 639)

Based on 974 user benchmarks.  Device: VID 0781 PID 5591 Model: SanDisk Ultra USB 3.0
Poor: 8%Average: 26.1% Great: 41%

Very poor average bench

The SanDisk Ultra Flair USB 3.0 128GB averaged 73.9% 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.

Strengths

Avg. 4K Random Mixed IO Speed 1.91MB/s
Avg. 4K Random Write Speed 1.62MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra Flair USB 3.0 128GB is 32.8%. This is a relatively narrow range which indicates that the SanDisk Ultra Flair USB 3.0 128GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 2.65MB/s
Avg. Sustained Write Speed 32.2MB/s

Average Bench

(Based on 974 samples)
Min Avg Max
26.5 Read 92.9 149
6.73 Write 58.6 103
1 Mixed 61.5 107
11.9 SusWrite 32.2 52.4
76.6% 61.3 MB/s
Min Avg Max
1.8 4K Read 2.65 3.3
0 4K Write 1.62 2.7
0 4K Mixed 1.91 2.8
130% 2.06 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
85GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 98 45 43 40 42 43 MB/s
Read 140
Write 98.2
Mixed 99
SusWrite 51.9
123% 97.4 MB/s
4K Read 2.8
4K Write 2.6
4K Mixed 2.7
191% 2.7 MB/s
109GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 99 40 28 41 43 43 MB/s
Read 135
Write 90.7
Mixed 87.1
SusWrite 48.9
114% 90.4 MB/s
4K Read 2.9
4K Write 2.6
4K Mixed 2.7
191% 2.73 MB/s
102GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 83 15 29 31 40 41 MB/s
Read 140
Write 94.9
Mixed 100
SusWrite 39.8
118% 93.8 MB/s
4K Read 2.8
4K Write 2.4
4K Mixed 2.5
177% 2.57 MB/s
974 MORE »

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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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