Average Bench: 54.7% (18th of 639)

Based on 576 user benchmarks.  Device: VID 0781 PID 5588 Model: SanDisk Extreme Pro
Poor: 22%Average: 54.7% Great: 129%

Average average bench

The SanDisk Extreme Pro USB 3.1 128GB averaged 45.3% 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. 4K-64Thread Write Speed 11MB/s
Avg. 4K-64Thread Mixed IO Speed 9.28MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme Pro USB 3.1 128GB is 107%. This is a particularly wide range which indicates that the SanDisk Extreme Pro USB 3.1 128GB performs inconsistently under varying real world conditions.


Avg. Sequential Read Speed 92.2MB/s
Avg. Sequential Mixed IO Speed 44.2MB/s

Average Bench

(Based on 576 samples)
Min Avg Max
24.1 Read 92.2 287
14.2 Write 50.8 183
6.86 Mixed 44.2 149
16.1 SusWrite 67.6 246
80.7% 63.7 MB/s
Min Avg Max
4.1 4K Read 7.28 11.4
2.2 4K Write 8.08 11.9
2.64 4K Mixed 6.38 9.77
519% 7.25 MB/s
Min Avg Max
8.69 DQ Read 11 15.1
6.82 DQ Write 11 12.9
6.3 DQ Mixed 9.28 11.9
731% 10.4 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
119GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 84 85 95 92 87 101 MB/s
Read 121
Write 83.5
Mixed 93.5
SusWrite 90.8
128% 97.1 MB/s
4K Read 7.9
4K Write 10.2
4K Mixed 8
648% 8.7 MB/s
DQ Read 13.1
DQ Write 12.6
DQ Mixed 11
851% 12.2 MB/s
78GB free, PID 5588
Operating at USB 2.1 Speed
SusWrite @10s intervals: 24 24 24 24 24 24 MB/s
Read 32.7
Write 26.9
Mixed 28.5
SusWrite 23.8
37% 28 MB/s
4K Read 5.8
4K Write 6.5
4K Mixed 5.3
423% 5.87 MB/s
576 MORE »


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USB Flash Drive Rankings (Price vs Performance) June 2020 USB Rankings.

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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  • Best user rated - User sentiment trumps benchmarks for this comparison.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.


Added n/a ago.

Good (edit your comment) Add link

21 days ago.

I get consistent 350MB/s write speeds.


12 months ago.

el mas rapido de 250 a 300mb/s

639 Drives (Compared) Thousands of user benchmarks compiled into one comparison list.

See how consistently different USBs perform with varying real world conditions. The charts also illustrate overall performance, popularity and rank.

 Frequently Asked Questions

 Best User Rated

The Best.
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Intel Core i7-9700K $370Nvidia RTX 2070S (Super) $500Samsung 860 Evo 250GB $55
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WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $75SanDisk Extreme 32GB $46
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