Average Bench: 50.7% (20th of 639)

Based on 147 user benchmarks.  Device: VID 05dc PID a212 Model: Lexar USB Flash Drive
Poor: 12%Average: 50.7% Great: 88%

Average average bench

The Lexar USB Flash Drive 128GB averaged 49.2% 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. Sustained Write Speed 258MB/s
Avg. Sequential Write Speed 102MB/s

Very poor consistency

The range of scores (95th - 5th percentile) for the Lexar USB Flash Drive 128GB is 76.8%. This is a particularly wide range which indicates that the Lexar USB Flash Drive 128GB performs inconsistently under varying real world conditions.


Avg. 4K Random Read Speed 4.97MB/s
Avg. 4K Random Mixed IO Speed 0.55MB/s

Average Bench

(Based on 147 samples)
Min Avg Max
30.3 Read 173 295
20.1 Write 102 200
14.3 Mixed 77.5 172
254 SusWrite 258 262
205% 153 MB/s
Min Avg Max
2.6 4K Read 4.97 8.94
0.14 4K Write 0.66 0.98
0.04 4K Mixed 0.55 0.77
59.5% 2.06 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
27GB free, PID a212, Lexar P20 128GB
Operating at USB 3.0 Speed
SusWrite @10s intervals: 238 264 258 268 270 230 MB/s
Read 262
Write 252
Mixed 128
SusWrite 254
298% 224 MB/s
4K Read 4.2
4K Write 0.9
4K Mixed 1.4
94% 2.17 MB/s
58GB free, PID a212, Lexar P20
Operating at USB 3.0 Speed
Read 288
Write 198
Mixed 35.2
188% 174 MB/s
4K Read 7.37
4K Write 0.98
4K Mixed 0.48
77% 2.94 MB/s
119GB free, PID a212
Operating at USB 3.0 Speed
SusWrite @10s intervals: 264 264 267 240 270 267 MB/s
Read 196
Write 158
Mixed 132
SusWrite 262
254% 187 MB/s
4K Read 4.4
4K Write 0.9
4K Mixed 1.5
98% 2.27 MB/s
147 MORE »
How Fast Is Your USB? (Bench your build) Size up your PC in less than a minute.

Welcome to our freeware PC speed test tool. UserBenchmark will test your PC and compare the results to other users with the same components. You can quickly size up your PC, identify hardware problems and explore the best upgrades.

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How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
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USB Flash Drive Rankings (Price vs Performance) July 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]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Fastest real world speed - Real World Speed measures performance for typical flash usage patterns.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.


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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AMD Ryzen 5 1600 $160Nvidia GTX 1060-6GB $290Samsung 850 Evo 500GB $121
Intel Core i5-8600K $225AMD RX 480 $280Samsung 850 Pro 256GB $160
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $160SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $951SanDisk Extreme 32GB $46
Seagate Barracuda 2TB (2016) $59HyperX Fury DDR4 2133 C14 2x8GB $219SanDisk Ultra Fit 32GB $12
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