TEST
YOUR USB

SanDisk SDCZ88-128G (Flash)

Extreme Pro USB 3.0 128GB

Average Bench: 80.2% (6th of 639)

Based on 1,389 user benchmarks.  Device: VID 0781 PID 5588 Model: SanDisk ExtremePro
Poor: 22%Average: 80.2% Great: 123%

Very good average bench

The SanDisk Extreme Pro USB 3.0 128GB averaged just 19.7% 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 9.39MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the SanDisk Extreme Pro USB 3.0 128GB is 101%. 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 46MB/s
Avg. 4K Random Read Speed 8.54MB/s
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Average Bench

(Based on 1,389 samples)
Rank 680.2%
Min Avg Max
23.3 Read 161 251
8.08 Write 98.7 216
2 Mixed 46 127
11.2 SusWrite 126 229
135% 108 MB/s
Min Avg Max
2.64 4K Read 8.54 12.4
0.7 4K Write 8.93 11.7
3.4 4K Mixed 6.98 8.86
573% 8.15 MB/s
Min Avg Max
8.8 DQ Read 11 12.8
10.2 DQ Write 11.9 12.7
7.67 DQ Mixed 9.39 10.5
766% 10.8 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
51GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 224 227 220 217 214 214 MB/s
123% Outstanding
Read 252
Write 216
Mixed 71.7
SusWrite 219
245% 190 MB/s
4K Read 12.2
4K Write 11.5
4K Mixed 8.3
719% 10.7 MB/s
DQ Read 12.5
DQ Write 12.6
DQ Mixed 10.2
822% 11.8 MB/s
82GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 200 209 194 201 199 210 MB/s
115% Outstanding
Read 236
Write 125
Mixed 49.9
SusWrite 202
191% 153 MB/s
4K Read 12.6
4K Write 11
4K Mixed 8.7
717% 10.8 MB/s
DQ Read 12.9
DQ Write 12.6
DQ Mixed 10.3
827% 11.9 MB/s
114GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 183 198 197 197 193 201 MB/s
115% Outstanding
Read 240
Write 192
Mixed 118
SusWrite 195
243% 186 MB/s
4K Read 12.5
4K Write 11.2
4K Mixed 8.3
710% 10.7 MB/s
DQ Read 12.7
DQ Write 12.1
DQ Mixed 10
799% 11.6 MB/s
70GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 133 130 133 186 198 173 MB/s
105% Outstanding
Read 252
Write 29.6
Mixed 16.3
SusWrite 159
124% 114 MB/s
4K Read 10.1
4K Write 10.2
4K Mixed 8.5
674% 9.6 MB/s
DQ Read 10.8
DQ Write 11.9
DQ Mixed 9.6
771% 10.8 MB/s
119GB free, PID 5588
Operating at USB 2.1 Speed
SusWrite @10s intervals: 29 39 28 22 20 39 MB/s
23% Poor
Read 20.6
Write 34.9
Mixed 2.5
SusWrite 29.5
30% 21.9 MB/s
4K Read 2.7
4K Write 4.2
4K Mixed 6.9
388% 4.6 MB/s
114GB free, PID 5588
Operating at USB 3.0 Speed
SusWrite @10s intervals: 17 21 30 32 46 28 MB/s
18.6% Very poor
Read 50
Write 41.7
Mixed 55
SusWrite 28.6
59% 43.8 MB/s
4K Read 7.4
4K Write 1.1
4K Mixed 3.1
170% 3.87 MB/s
1,389 MORE »

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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
8,272

Excellent (edit your comment) Add link

10 months ago.

FRA-User
Avatar level
4,027

Excellent

6 months ago.

got it for 5 years and still totally satisfied great product

IND-User
Avatar level
3,948

Excellent

2 years ago.

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

hellcinder
Avatar level
14

Excellent

13 months ago.

Best speeds for xfering data on a thumb drive.

TheGrumpybear
Avatar level
14

Excellent

8 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
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vs Lexar JumpDrive P20 64GB
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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
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What is 3D XPoint and how fast is it?
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What is the Flash Drive value for money rating?
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 Best User Rated
The Best.
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Intel Core i5-11400F $195Nvidia GTX 1660S (Super) $240Samsung 850 Evo 120GB $200
HDDRAMUSB
Seagate Barracuda 1TB (2016) $38Corsair Vengeance LPX DDR4 3200 C16 2x8GB $67SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $39Corsair Vengeance LPX DDR4 3000 C15 2x8GB $76SanDisk Extreme 32GB $28
Seagate Barracuda 2TB (2016) $71G.SKILL Trident Z DDR4 3200 C14 4x16GB $649SanDisk Ultra Fit 32GB $16
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