Average Bench: 42.7% (36th of 634)

Based on 163 user benchmarks.  Device: VID 1058 PID 1230 Model: WD My Book 1230

Below average average bench

The WD My Book 1230 4TB averaged 57.2% 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.


Avg. 4K Random Write Speed 2.13MB/s
Avg. Sequential Write Speed 98.1MB/s

Average consistency

The range of scores (95th - 5th percentile) for the WD My Book 1230 4TB is 42.6%. This is a relatively wide range which indicates that the WD My Book 1230 4TB performs inconsistently under varying real world conditions.


Avg. 4K Random Read Speed 0.77MB/s
Avg. 4K Random Mixed IO Speed 0.26MB/s

Average Bench

(Based on 163 samples)
Min Avg Max
28.9 Read 101 148
26.6 Write 98.1 147
25.6 Mixed 82.6 123
119% 93.8 MB/s
Min Avg Max
0.44 4K Read 0.77 0.95
1.43 4K Write 2.13 2.62
0.21 4K Mixed 0.26 0.29
84.2% 1.05 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
498GB free, PID 1230
Operating at USB 3.0 Speed
Read 139
Write 136
Mixed 123
170% 133 MB/s
4K Read 0.77
4K Write 2.24
4K Mixed 0.28
88% 1.1 MB/s
502GB free, PID 1230
Operating at USB 3.0 Speed
Read 126
Write 131
Mixed 116
160% 125 MB/s
4K Read 0.88
4K Write 2.33
4K Mixed 0.28
92% 1.16 MB/s
657GB free, PID 1230
Operating at USB 3.0 Speed
Read 119
Write 79.7
Mixed 84.2
114% 94.3 MB/s
4K Read 0.45
4K Write 2.37
4K Mixed 0.22
90% 1.01 MB/s
163 MORE »
Typical My Book 1230 4TB Builds (Compare 4,203 builds) See popular component choices, score breakdowns and rankings.
Gaming 21%
Desktop 70%
Battle cruiser
Workstation 48%

System: Dell XPS 8700

EDIT WITH CUSTOM PC BUILDER Value: 83% - Excellent Total price: $517

Popular My Book 1230 4TB systems:

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 (UBM).
  • - CPU tests include: integer, floating and string.
  • - GPU tests include: six 3D game simulations.
  • - Drive tests include: read, write and mixed IO.
  • - Checks include: 4k Align, NCQ, TRIM, SATA, USB & S.M.A.R.T.
  • - 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 highest voted in class.
  • - Find the best upgrades.
  • - Share your opinion by voting.
USB Flash Drive Rankings (Price vs Performance) March 2018 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]


Group Test Results

  • Best user rated - User sentiment trumps benchmarks for this comparison.
  • Fastest real world speed - Real World Speed measures performance for typical flash usage patterns.
  • Best value for money - Value for money is based on real world performance, price and capacity.
  • Raw speed comparison - Raw speed readings.


634 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.
Intel Core i7-8700K $330Nvidia GTX 1070 $447Samsung 850 Evo 250GB $95
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $149
AMD Ryzen 5 1600 $189AMD RX 480 $400Samsung 850 Pro 256GB $121
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $170SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $75G.SKILL Trident Z DDR4 3200 C14 4x16GB $931SanDisk Extreme 32GB $23
Seagate Barracuda 7200.14 1TB $51Corsair Vengeance LPX DDR4 3200 C16 2x8GB $205SanDisk Extreme 16GB $18
Today's hottest deals
User Guide  •  About  •  FAQs  •  @Email  •  Privacy  •  Developer Feedback