Average Bench: 23.7% (172nd of 639)

Based on 431 user benchmarks.  Device: VID 125f PID 312b Model: ADATA USB Flash Drive

The Adata Dashdrive Elite S102 Pro 64GB has proven to be a popular USB 3.0 flash drive. I did a full review of the 16GB version back in 2012 and little has changed since then. The S102 Pro still has the same robust form factor and reasonable performance profile. The 64GB S102 Pro has sequential read/write speeds of 105/50 MBps which is exactly in line with the indicated speeds on Adata's website. Peak small 4K file performance is currently measuring 7.84/1.49 MB/s which is well above average for a 64GB flash drive. At present our users have only submit four benchmark samples for this model, the peak 4K speeds are likely to drop as we accumulate more samples. The 64GB S102 Pro's performace is largely in line with its 32GB sibling and it bests its 16GB sibling by around 30%. Overall the 64GB S102 Pro Dashdrive Elite represents good value for money. [Feb '14 USBFlashPro]

Poor: 9%Average: 23.7% Great: 43%

Very poor average bench

The Adata DashDrive Elite S102 Pro USB 3.0 64GB averaged 76.3% 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 13MB/s
Avg. 4K-64Thread Mixed IO Speed 8.45MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Adata DashDrive Elite S102 Pro USB 3.0 64GB is 34%. This is a relatively narrow range which indicates that the Adata DashDrive Elite S102 Pro USB 3.0 64GB performs reasonably consistently under varying real world conditions.


Avg. 4K Random Read Speed 4.53MB/s
Avg. Sequential Read Speed 82MB/s

Average Bench

(Based on 431 samples)
Min Avg Max
27.6 Read 82 195
7.64 Write 37.2 93
6.73 Mixed 40.6 90.2
15.3 SusWrite 40.4 74
61.1% 50 MB/s
Min Avg Max
1.74 4K Read 4.53 7.28
0.01 4K Write 0.78 1.43
0 4K Mixed 0.82 1.9
71% 2.04 MB/s
Min Avg Max
8.6 DQ Read 14.1 19.5
9.1 DQ Write 13 16.9
6.5 DQ Mixed 8.45 10.4
782% 11.8 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
58GB free, PID 312b
Operating at USB 3.2 Speed
SusWrite @10s intervals: 46 44 43 43 43 36 MB/s
Read 243
Write 71.2
Mixed 121
SusWrite 42.4
134% 119 MB/s
4K Read 14.1
4K Write 11.3
4K Mixed 10.8
804% 12.1 MB/s
DQ Read 20.1
DQ Write 20.3
DQ Mixed 12.7
1,197% 17.7 MB/s
33GB free, PID 312b
Operating at USB 3.1 Speed
SusWrite @10s intervals: 55 60 61 62 62 62 MB/s
Read 112
Write 73
Mixed 28.8
SusWrite 60
84% 68.4 MB/s
4K Read 6.1
4K Write 0.3
4K Mixed 0
33% 2.13 MB/s
6GB free, PID 312b
Operating at USB 3.2 Speed
SusWrite @10s intervals: 43 53 53 53 53 55 MB/s
Read 105
Write 45.9
Mixed 76.7
SusWrite 51.8
87% 69.8 MB/s
4K Read 3.2
4K Write 0.8
4K Mixed 1.2
80% 1.73 MB/s
57GB free, PID 312b
Operating at USB 3.0 Speed
SusWrite @10s intervals: 57 62 63 62 64 61 MB/s
Read 83
Write 52
Mixed 51
SusWrite 61.4
80% 61.8 MB/s
4K Read 3.6
4K Write 0.5
4K Mixed 0.8
58% 1.63 MB/s
28GB free, PID 312b
Operating at USB 3.0 Speed
SusWrite @10s intervals: 37 41 41 41 41 41 MB/s
Read 83.3
Write 40.7
Mixed 51.9
SusWrite 40.2
67% 54 MB/s
4K Read 3.8
4K Write 0
4K Mixed 0
14% 1.27 MB/s
431 MORE »


Approx. $46 @ launch in Jan '11
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USB Flash Drive Rankings (Price vs Performance) January 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]


Group Test Results

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


Value-Driven USB 3.0 Solution...

Added 5 years ago.

Excellent (edit your comment) Add link

5 months ago.

still have this usb for about 5 years. no problems


21 months ago.

VERY good read and write speed with regards to its price and guarantee i benched it with HDD TUNE PRO


13 months ago.

Excellent and very fast USB. Crystaldiskmark reports speeds of 205-213 MB/s read and 96-102 MB/s write. One of the fastest on the market.

Very good

5 years ago.

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.

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