Average Bench: 28.4% (117th of 639)

Based on 886 user benchmarks.  Device: VID 0781 PID 5591 Model: SanDisk Ultra USB 3.0
Poor: 8%Average: 28.4% Great: 53%

Very poor average bench

The SanDisk Ultra Flair USB 3.0 128GB averaged 71.5% 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.

Strengths

Avg. 4K Random Write Speed 1.74MB/s
Avg. 4K Random Mixed IO Speed 1.6MB/s

Average consistency

The range of scores (95th - 5th percentile) for the SanDisk Ultra Flair USB 3.0 128GB is 44.2%. This is a relatively wide range which indicates that the SanDisk Ultra Flair USB 3.0 128GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 2.89MB/s
Avg. Sustained Write Speed 30.8MB/s
ADVERTISEMENT

Average Bench

(Based on 886 samples)
Min Avg Max
23.4 Read 93.6 150
7.68 Write 58.6 103
1.5 Mixed 63 115
10.9 SusWrite 30.8 52.1
76.8% 61.5 MB/s
Min Avg Max
1.59 4K Read 2.89 4.19
0 4K Write 1.74 2.8
0 4K Mixed 1.6 2.7
124% 2.08 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
108GB free, PID 5591
Operating at USB 3.0 Speed
SusWrite @10s intervals: 89 7.4 36 34 39 42 MB/s
Read 117
Write 73.8
Mixed 83.1
SusWrite 41.2
99% 78.7 MB/s
4K Read 2.2
4K Write 2.1
4K Mixed 2.1
151% 2.13 MB/s
112GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 25 25 25 24 3.6 8.9 MB/s
Read 36.3
Write 24.8
Mixed 27.7
SusWrite 18.7
35% 26.9 MB/s
4K Read 2.9
4K Write 0
4K Mixed 0.1
14% 1 MB/s
65GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 17 13 12 12 24 24 MB/s
Read 35.2
Write 23.3
Mixed 1.2
SusWrite 17
22% 19.2 MB/s
4K Read 3
4K Write 0.1
4K Mixed 2.3
93% 1.8 MB/s
11GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 24 24 24 23 11 15 MB/s
Read 34.5
Write 12
Mixed 26
SusWrite 19.9
29% 23.1 MB/s
4K Read 2
4K Write 0
4K Mixed 0
7% 0.67 MB/s
28GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 24 24 24 23 9.6 3.2 MB/s
Read 36.6
Write 23.6
Mixed 27
SusWrite 18
34% 26.3 MB/s
4K Read 2.4
4K Write 0
4K Mixed 2
77% 1.47 MB/s
65GB free, PID 5591
Operating at USB 2.1 Speed
SusWrite @10s intervals: 13 20 19 16 24 21 MB/s
Read 34.5
Write 22.5
Mixed 1.5
SusWrite 18.7
23% 19.3 MB/s
4K Read 2.7
4K Write 0
4K Mixed 0.1
13% 0.93 MB/s
886 MORE »

 Prices

EbayUS $618 mins
AmazonUS $1738 mins
Send price feedback
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.

UserBenchmark of the month

How it works

  • - Download and run UserBenchMark.
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write, sustained write and mixed IO.
  • - RAM tests include: single/multi core bandwidth and latency.
  • - Reports are generated and presented on userbenchmark.com.
  • - Identify the strongest components in your PC.
  • - See speed test results from other users.
  • - Compare your components to the current market leaders.
  • - Explore your best upgrade options with a virtual PC build.
  • - Compare your in-game FPS to other users with your hardware.
  • - Share your opinion by voting.
USB Flash Drive Rankings (Price vs Performance) August 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]

ADVERTISEMENT

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.

Terrible

19 months ago.

Very bad write speeds mostly below 20 MB/s


Your
opinion?
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.
CPUGPUSSD
Intel Core i5-9600K $180Nvidia GTX 1660S (Super) $230Crucial MX500 250GB $43
Intel Core i5-9400F $151Nvidia GTX 1650S (Super) $170Samsung 850 Evo 120GB $78
Intel Core i7-9700K $328Nvidia RTX 2070S (Super) $510Samsung 860 Evo 250GB $47
HDDRAMUSB
Seagate Barracuda 1TB (2016) $42Corsair Vengeance LPX DDR4 3200 C16 2x8GB $60SanDisk Extreme 64GB $72
WD Blue 1TB (2012) $34Corsair Vengeance LPX DDR4 3000 C15 2x8GB $69SanDisk Extreme 32GB $46
Seagate Barracuda 3TB (2016) $85G.SKILL Trident Z DDR4 3200 C14 4x16GB $681SanDisk Extreme 16GB $24
Today's hottest deals
About  •  User Guide  •  FAQs  •  Email  •  Privacy  •  Developer  •  YouTube Feedback