TEST
YOUR USB

I-O (ExtHD)

DATA HDCX-UT 6TB

▲ 500 ▼

Release date ≈ Q1 2022.

Average Bench: 63.3% (9th of 639)

Based on 4 user benchmarks.  Device: VID 04bb PID 0185 Model: I-O DATA HDCX-UT
Poor: 46%Average: 63.3% Great: 73%

Above average average bench

The I-O DATA HDCX-UT 6TB averaged 36.6% 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. Sequential Write Speed 149MB/s
Avg. Sustained Write Speed 144MB/s

Unknown consistency

There are too few samples to reasonably determine how consistently this USB perfroms. This result should be interpreted with caution.

Weaknesses

Avg. 4K Random Read Speed 3.55MB/s
Avg. 4K Random Mixed IO Speed 0.62MB/s
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Average Bench

(Based on 4 samples)
Rank 963.3%
Min Avg Max
136 Read 176 197
113 Write 149 184
79.3 Mixed 99.9 114
77.8 SusWrite 144 176
187% 142 MB/s
Min Avg Max
2.1 4K Read 3.55 7.3
0.8 4K Write 1.83 4.9
0.4 4K Mixed 0.62 0.9
96.5% 2 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
4TB free, PID 0185
Operating at USB 3.2 Speed
SusWrite @10s intervals: 165 166 167 167 167 165 MB/s
72.7% Very good
Read 136
Write 148
Mixed 106
SusWrite 166
192% 139 MB/s
4K Read 7.3
4K Write 4.9
4K Mixed 0.9
224% 4.37 MB/s
5TB free, PID 0185
Operating at USB 3.2 Speed
SusWrite @10s intervals: 172 173 178 180 174 178 MB/s
69.6% Good
Read 194
Write 152
Mixed 100
SusWrite 176
204% 156 MB/s
4K Read 2.6
4K Write 0.8
4K Mixed 0.7
61% 1.37 MB/s
5TB free, PID 0185
Operating at USB 3.2 Speed
SusWrite @10s intervals: 177 161 144 143 144 162 MB/s
65.3% Good
Read 197
Write 184
Mixed 114
SusWrite 155
215% 162 MB/s
4K Read 2.1
4K Write 0.8
4K Mixed 0.4
49% 1.1 MB/s
3TB free, PID 0185
Operating at USB 3.2 Speed
SusWrite @10s intervals: 78 78 79 78 77 77 MB/s
45.7% Average
Read 177
Write 113
Mixed 79.3
SusWrite 77.8
138% 112 MB/s
4K Read 2.2
4K Write 0.8
4K Mixed 0.5
52% 1.17 MB/s
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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.
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  • Fastest real world speed - Real World Speed measures performance for typical consumers.

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