Average Bench: 50.9% (18th of 639)

Based on 159 user benchmarks.  Device: VID 05dc PID a212 Model: Lexar USB Flash Drive
Poor: 12%Average: 50.9% Great: 89%

Average average bench

The Lexar USB Flash Drive 128GB averaged 49.1% 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. Sustained Write Speed 147MB/s
Avg. Sequential Write Speed 105MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the Lexar USB Flash Drive 128GB is 77.8%. This is a particularly wide range which indicates that the Lexar USB Flash Drive 128GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 4.87MB/s
Avg. 4K Random Mixed IO Speed 0.61MB/s
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Average Bench

(Based on 159 samples)
Min Avg Max
29.7 Read 171 295
19.2 Write 105 202
13.1 Mixed 76.6 170
16.9 SusWrite 147 277
160% 125 MB/s
Min Avg Max
2.49 4K Read 4.87 8.91
0.1 4K Write 0.65 1
0.05 4K Mixed 0.61 1.4
61% 2.04 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
64GB free, PID a212
Operating at USB 3.0 Speed
SusWrite @10s intervals: 212 262 240 269 270 226 MB/s
Read 234
Write 246
Mixed 123
SusWrite 246
286% 212 MB/s
4K Read 4.1
4K Write 0.9
4K Mixed 1.3
90% 2.1 MB/s
47GB free, PID a212
Operating at USB 3.0 Speed
SusWrite @10s intervals: 229 255 231 258 232 257 MB/s
Read 207
Write 165
Mixed 131
SusWrite 244
252% 187 MB/s
4K Read 6.4
4K Write 1
4K Mixed 1.6
112% 3 MB/s
119GB free, PID a212
Operating at USB 3.0 Speed
SusWrite @10s intervals: 263 266 273 182 51 58 MB/s
Read 289
Write 248
Mixed 62.5
SusWrite 182
246% 196 MB/s
4K Read 5.7
4K Write 1
4K Mixed 1.7
113% 2.8 MB/s
83GB free, PID a212
Operating at USB 3.0 Speed
SusWrite @10s intervals: 226 188 156 138 84 126 MB/s
Read 272
Write 253
Mixed 127
SusWrite 153
260% 201 MB/s
4K Read 4.4
4K Write 0.9
4K Mixed 1.5
98% 2.27 MB/s
79GB free, PID a212
Operating at USB 3.0 Speed
SusWrite @10s intervals: 120 159 134 187 182 167 MB/s
Read 187
Write 187
Mixed 40.4
SusWrite 158
186% 143 MB/s
4K Read 5.2
4K Write 1
4K Mixed 1.6
108% 2.6 MB/s
119GB free, PID a212
Operating at USB 2.1 Speed
SusWrite @10s intervals: 18 16 18 19 27 26 MB/s
Read 32
Write 25.6
Mixed 21.7
SusWrite 20.6
33% 25 MB/s
4K Read 3
4K Write 0.6
4K Mixed 1.1
69% 1.57 MB/s
23GB free, PID a212
Operating at USB 2.1 Speed
SusWrite @10s intervals: 19 20 21 25 21 23 MB/s
Read 23.7
Write 4.5
Mixed 15.7
SusWrite 21.5
21% 16.4 MB/s
4K Read 2.8
4K Write 0
4K Mixed 1.1
48% 1.3 MB/s
82GB free, PID a212
Operating at USB 2.1 Speed
SusWrite @10s intervals: 17 21 21 13 12 19 MB/s
Read 8.2
Write 11.9
Mixed 12.4
SusWrite 16.9
18% 12.4 MB/s
4K Read 0.6
4K Write 0.1
4K Mixed 0.4
19% 0.37 MB/s
159 MORE »
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USB Flash Drive Rankings (Price vs Performance) September 2018 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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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.

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

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