TEST
YOUR USB

SanDisk SDCZ88-128G (Flash)

Extreme Pro USB 3.0 128GB

Average Bench: 81.4% (6th of 639)

Based on 1,435 user benchmarks.  Device: VID 0781 PID 5588 Model: SanDisk ExtremePro
Poor: 23%Average: 81.4% Great: 123%

Very good average bench

The SanDisk Extreme Pro USB 3.0 128GB averaged just 18.6% 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 12MB/s
Avg. 4K-64Thread Mixed IO Speed 9.39MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme Pro USB 3.0 128GB is 100%. 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 46.6MB/s
Avg. 4K Random Read Speed 8.63MB/s
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Average Bench

(Based on 1,435 samples)
Rank 681.4%
Min Avg Max
25.7 Read 162 251
7.99 Write 98.9 215
2 Mixed 46.6 122
11.3 SusWrite 128 229
137% 109 MB/s
Min Avg Max
2.89 4K Read 8.63 12.4
1.1 4K Write 9.12 11.7
3.4 4K Mixed 7.01 8.8
581% 8.25 MB/s
Min Avg Max
8.8 DQ Read 10.9 12.8
10.5 DQ Write 12 12.7
7.5 DQ Mixed 9.39 10.6
768% 10.8 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
60GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 205 217 230 225 229 227 MB/s
120% Outstanding
Read 244
Write 208
Mixed 66
SusWrite 222
240% 185 MB/s
4K Read 10
4K Write 10.9
4K Mixed 7.6
666% 9.5 MB/s
DQ Read 11.4
DQ Write 12.2
DQ Mixed 10.1
801% 11.2 MB/s
1,435 MORE »

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  • - CPU tests include: integer, floating and string.
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  • - Drive tests include: read, write, sustained write and mixed IO.
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USB Flash Drive Rankings (Price vs Performance) March 2023 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
9,312

Disliked (edit your comment) Add link

1 month ago.

IND-User
Avatar level
4,376

Excellent

3 years ago.

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

FRA-User
Avatar level
4,357

Excellent

22 months ago.

got it for 5 years and still totally satisfied great product

hellcinder
Avatar level
14

Excellent

2 years ago.

Best speeds for xfering data on a thumb drive.

TheGrumpybear
Avatar level
14

Excellent

24 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 Ultra Fit 32GB
vs SanDisk Extreme 16GB
vs Lexar JumpDrive P20 64GB
vs Adata DashDrive UV128 32GB
vs SanDisk Ultra Fit 16GB
vs Corsair Flash Voyager GT 32GB
vs Lexar JumpDrive P20 32GB

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?
What’s the difference between SATA, PCIe and NVMe?
What’s the difference between NAND and V-NAND?
What is sequential write speed?
What is sequential read speed?
What is incompressible data?
USB Flash Drives
How do you install an OS from a USB flash drive?
What is the Flash Drive value for money rating?
What is effective USB Flash Drive speed?
Why should USB 2.0 Flash Drives be avoided?
File system considerations?
Do dimensions matter?
What are the main factors to look out for?
16GB USB Flash Drives
Why is bigger better?
ALL FAQs »

 Best User Rated
The Best.
CPUGPUSSD
Intel Core i5-13600K $315Nvidia RTX 3060-Ti $420Crucial MX500 250GB $31
Intel Core i5-12600K $194Nvidia RTX 3060 $365Samsung 850 Evo 120GB $106
Intel Core i5-12400F $155Nvidia RTX 4070-Ti $830Samsung 860 Evo 250GB $50
HDDRAMUSB
Seagate Barracuda 1TB (2016) $34Corsair Vengeance LPX DDR4 3200 C16 2x8GB $43SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $30Corsair Vengeance LPX DDR4 3000 C15 2x8GB $43SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $80G.SKILL Trident Z DDR4 3200 C14 4x16GB $381SanDisk Ultra Fit 32GB $16
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