Average Bench: 53.4% (18th of 634)

Based on 9 user benchmarks.  Device: VID 19b9 PID 4d49 Model: Drobo Mini

Average average bench

The Drobo Mini 4.5TB averaged 46.5% 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.


Avg. 4K Random Write Speed 4.49MB/s
Avg. Sequential Write Speed 108MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the Drobo Mini 4.5TB is 64.7%. This is a particularly wide range which indicates that the Drobo Mini 4.5TB performs inconsistently under varying real world conditions.


Avg. 4K Random Read Speed 0.8MB/s
Avg. Sequential Read Speed 109MB/s

Average Bench

(Based on 9 samples)
Min Avg Max
28.1 Read 109 190
26.3 Write 108 220
24.1 Mixed 82.4 149
126% 100 MB/s
Min Avg Max
0.43 4K Read 0.8 1.04
4 4K Write 4.49 4.96
0.13 4K Mixed 0.87 1.99
185% 2.05 MB/s
User Benchmarks Bench Sequential Random 4k Deep queue 4k
The fastest USB (mainstream) averages a speed of 100%
3.5TB free, PID 4d49
Operating at USB 3.0 Speed
Read 175
Write 220
Mixed 114
218% 170 MB/s
4K Read 0.95
4K Write 4.9
4K Mixed 1.99
238% 2.61 MB/s
2TB free, PID 4d49
Operating at USB 3.0 Speed
Read 185
Write 189
Mixed 102
196% 158 MB/s
4K Read 2.34
4K Write 4.42
4K Mixed 1.19
199% 2.65 MB/s
3.5TB free, PID 4d49
Operating at USB 3.0 Speed
Read 163
Write 204
Mixed 149
225% 172 MB/s
4K Read 0.99
4K Write 4.11
4K Mixed 0.61
164% 1.9 MB/s
3.5TB free, PID 4d49
Operating at USB 3.0 Speed
Read 165
Write 191
Mixed 137
212% 164 MB/s
4K Read 1.04
4K Write 4.56
4K Mixed 1.7
217% 2.44 MB/s
3.5TB free, PID 4d49
Operating at USB 3.0 Speed
Read 94
Write 75.1
Mixed 66
96% 78.4 MB/s
4K Read 0.86
4K Write 4.96
4K Mixed 0.77
198% 2.2 MB/s
3.5TB free, PID 4d49
Operating at USB 3.0 Speed
Read 107
Write 29.4
Mixed 139
114% 91.8 MB/s
4K Read 0.88
4K Write 4.41
4K Mixed 1.37
200% 2.22 MB/s
3TB free, PID 4d49
Operating at USB 2.1 Speed
Read 31.6
Write 35.9
Mixed 26.2
40% 31.2 MB/s
4K Read 0.49
4K Write 4
4K Mixed 0.45
153% 1.65 MB/s
2.5TB free, PID 4d49
Operating at USB 2.1 Speed
Read 28.1
Write 26.3
Mixed 24.1
33% 26.2 MB/s
4K Read 0.51
4K Write 4.57
4K Mixed 0.52
175% 1.86 MB/s
Typical Mini 4.5TB Builds (Compare 274 builds) See popular component choices, score breakdowns and rankings.
Gaming 61%
Desktop 72%
Workstation 53%

Motherboard: Asus P8Z77-V PRO/THUNDERBOLT

EDIT WITH CUSTOM PC BUILDER Value: 69% - Good Total price: $1,066

Popular Mini 4.5TB compatible motherboards:

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 $85
Intel Core i7-7700K $290Nvidia GTX 1060-6GB $335Samsung 850 Evo 500GB $146
AMD Ryzen 5 1600 $189AMD RX 480 $400Samsung 850 Pro 256GB $155
Seagate Barracuda 1TB (2016) $44Corsair Vengeance LPX DDR4 3000 C15 2x8GB $198SanDisk Extreme 64GB $44
Seagate Barracuda 3TB (2016) $80G.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