TEST
YOUR USB

SanDisk SDCZ88-128G (Flash)

Extreme Pro USB 3.0 128GB

Average Bench: 77.8% (6th of 639)

Based on 1,154 user benchmarks.  Device: VID 0781 PID 5588 Model: SanDisk ExtremePro
Poor: 19%Average: 77.8% Great: 121%

Good average bench

The SanDisk Extreme Pro USB 3.0 128GB averaged 22.1% 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 11.3MB/s
Avg. 4K Random Write Speed 8.53MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme Pro USB 3.0 128GB is 103%. 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. 4K Random Read Speed 8.39MB/s
Avg. Sequential Mixed IO Speed 58.2MB/s
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Average Bench

(Based on 1,154 samples)
Rank 677.8%
Min Avg Max
15.8 Read 162 250
8.2 Write 102 216
2.5 Mixed 58.2 169
10.4 SusWrite 122 227
140% 111 MB/s
Min Avg Max
2.5 4K Read 8.39 12.4
0.67 4K Write 8.53 11.7
2.17 4K Mixed 6.12 8.8
529% 7.68 MB/s
Min Avg Max
8.5 DQ Read 11 13
8.3 DQ Write 11.3 12.7
4.09 DQ Mixed 8.31 10.6
708% 10.2 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
112GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 55 180 176 167 149 185 MB/s
101% Outstanding
Read 223
Write 51.5
Mixed 69.1
SusWrite 152
146% 124 MB/s
4K Read 9.3
4K Write 10.8
4K Mixed 7.2
647% 9.1 MB/s
DQ Read 10.2
DQ Write 12
DQ Mixed 9.6
772% 10.6 MB/s
119GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 160 158 115 82 82 80 MB/s
84.9% Excellent
Read 168
Write 162
Mixed 110
SusWrite 113
183% 138 MB/s
4K Read 12.1
4K Write 10.8
4K Mixed 8.5
701% 10.5 MB/s
DQ Read 11
DQ Write 10.9
DQ Mixed 9.8
745% 10.6 MB/s
1,154 MORE »

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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]

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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
6,110

Liked (edit your comment) Add link

8 days ago.

IND-User
Avatar level
2,800

Excellent

4 months ago.

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

Your
opinion?
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Ready to retire
Age: 5 years

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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
What is sustained sequential write speed?
What’s the difference between SLC, MLC and TLC?
What is 3D XPoint and how fast is it?
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USB Flash Drives
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What is the Flash Drive value for money rating?
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HDDRAMUSB
Seagate Barracuda 1TB (2016) $37Corsair Vengeance LPX DDR4 3200 C16 2x8GB $73SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $40Corsair Vengeance LPX DDR4 3000 C15 2x8GB $63SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $653SanDisk Ultra Fit 32GB $16
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