TEST
YOUR USB

SanDisk SDCZ88-128G (Flash)

Extreme Pro USB 3.0 128GB

Average Bench: 77% (6th of 639)

Based on 1,416 user benchmarks.  Device: VID 0781 PID 5588 Model: SanDisk ExtremePro
Poor: 16%Average: 77% Great: 122%

Good average bench

The SanDisk Extreme Pro USB 3.0 128GB averaged 22.9% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the SanDisk Extreme Pro USB 3.0 128GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 11.9MB/s
Avg. 4K-64Thread Mixed IO Speed 9.36MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme Pro USB 3.0 128GB is 106%. This is a particularly wide range which indicates that the SanDisk Extreme Pro USB 3.0 128GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Mixed IO Speed 43.8MB/s
Avg. 4K Random Read Speed 8.28MB/s
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Average Bench

(Based on 1,416 samples)
Rank 677%
Min Avg Max
14.5 Read 154 251
5 Write 93.6 215
2 Mixed 43.8 121
9.31 SusWrite 120 228
129% 103 MB/s
Min Avg Max
2.11 4K Read 8.28 12.4
0.4 4K Write 8.65 11.7
2.36 4K Mixed 6.76 8.8
555% 7.9 MB/s
Min Avg Max
8.7 DQ Read 10.9 12.8
9.98 DQ Write 11.9 12.7
7.5 DQ Mixed 9.36 10.5
763% 10.7 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
79GB free (System drive), PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 6.6 12 32 42 71 73 MB/s
43.5% Average
Read 22.8
Write 3.8
Mixed 0.3
SusWrite 39.3
21% 16.5 MB/s
4K Read 4
4K Write 10
4K Mixed 6.3
569% 6.77 MB/s
DQ Read 9.1
DQ Write 11.1
DQ Mixed 7.8
677% 9.33 MB/s
85GB free, PID 5588
Operating at USB 2.1 Speed
SusWrite @10s intervals: 38 40 38 40 40 40 MB/s
39.8% Below average
Read 39.5
Write 38.7
Mixed 27.8
SusWrite 39.3
49% 36.3 MB/s
4K Read 10.4
4K Write 7.5
4K Mixed 7.5
549% 8.47 MB/s
80GB free (System drive), PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 0.8 3.9 6.4 12 0.2 MB/s
3.81% Terrible
Read 3.8
Write 1.5
Mixed 9
SusWrite 5.4
7% 4.93 MB/s
4K Read 1
4K Write 0.6
4K Mixed 1.9
89% 1.17 MB/s
1,416 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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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.

 Comments

Added n/a ago.
USA-User
Avatar level
8,006

Excellent (edit your comment) Add link

5 months ago.

FRA-User
Avatar level
3,941

Excellent

2 months ago.

got it for 5 years and still totally satisfied great product

IND-User
Avatar level
3,796

Excellent

22 months ago.

isse achha toh 500 GB ki SSD na le lu BC.

hellcinder
Avatar level
14

Excellent

8 months ago.

Best speeds for xfering data on a thumb drive.

TheGrumpybear
Avatar level
14

Excellent

3 months ago.

does what it says on the box :D

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Speed Comparisons

vs SanDisk Extreme 64GB
vs SanDisk Extreme 32GB
vs SanDisk Extreme 16GB
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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

Storage Devices FAQ
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What is the Flash Drive value for money rating?
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 Best User Rated
The Best.
CPUGPUSSD
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Intel Core i5-11400F $260Nvidia RTX 3060-Ti $400Samsung 860 Evo 250GB $52
Intel Core i7-11700K $360Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $183
HDDRAMUSB
Seagate Barracuda 1TB (2016) $39Corsair Vengeance LPX DDR4 3200 C16 2x8GB $79SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $31Corsair Vengeance LPX DDR4 3000 C15 2x8GB $80SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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