TEST
YOUR USB

I-O (ExtHD)

DATA HDCA-UT 3TB

▲ 500 ▼

Release date ≈ Q2 2016.

Average Bench: 48.1% (25th of 639)

Based on 7 user benchmarks.  Device: VID 04bb PID 013c Model: I-O DATA HDCA-UT
Poor: 22%Average: 48.1% Great: 73%

Below average average bench

The I-O DATA HDCA-UT 3TB averaged 51.8% 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. Sustained Write Speed 153MB/s
Avg. 4K Random Write Speed 2.09MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the I-O DATA HDCA-UT 3TB is 51.6%. This is a relatively wide range which indicates that the I-O DATA HDCA-UT 3TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.78MB/s
Avg. 4K Random Mixed IO Speed 0.4MB/s
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Average Bench

(Based on 7 samples)
Rank 2548.1%
Min Avg Max
38.5 Read 112 187
39.2 Write 107 147
38.5 Mixed 88.3 130
119 SusWrite 153 188
159% 115 MB/s
Min Avg Max
0.55 4K Read 0.78 0.94
1.47 4K Write 2.09 2.6
0.1 4K Mixed 0.4 0.9
87.8% 1.09 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
2TB free, PID 013c
Operating at USB 3.0 Speed
SusWrite @10s intervals: 184 189 187 188 190 188 MB/s
73.4% Very good
Read 187
Write 147
Mixed 81.6
SusWrite 188
198% 151 MB/s
4K Read 0.7
4K Write 1.7
4K Mixed 0.8
88% 1.07 MB/s
2TB free, PID 013c
Operating at USB 3.0 Speed
53.7% Above average
Read 119
Write 135
Mixed 130
168% 128 MB/s
4K Read 0.94
4K Write 2.21
4K Mixed 0.25
87% 1.13 MB/s
2TB free, PID 013c
Operating at USB 3.0 Speed
52.4% Above average
Read 136
Write 120
Mixed 108
152% 121 MB/s
4K Read 0.87
4K Write 2.03
4K Mixed 0.28
82% 1.06 MB/s
1.5TB free, PID 013c
Operating at USB 3.0 Speed
49.7% Average
Read 129
Write 120
Mixed 112
153% 121 MB/s
4K Read 0.6
4K Write 1.47
4K Mixed 0.1
56% 0.72 MB/s
1.5TB free, PID 013c
Operating at USB 3.0 Speed
SusWrite @10s intervals: 97 111 123 127 128 128 MB/s
48.5% Average
Read 99
Write 99.4
Mixed 69.1
SusWrite 119
132% 96.6 MB/s
4K Read 0.9
4K Write 2.6
4K Mixed 0.9
122% 1.47 MB/s
260GB free, PID 013c
Operating at USB 3.0 Speed
36.7% Below average
Read 82.7
Write 86.2
Mixed 77.6
106% 82.2 MB/s
4K Read 0.61
4K Write 1.88
4K Mixed 0.24
74% 0.91 MB/s
2TB free, PID 013c
Operating at USB 2.1 Speed
21.9% Poor
Read 38.5
Write 39.2
Mixed 38.5
50% 38.7 MB/s
4K Read 0.9
4K Write 2.45
4K Mixed 0.26
95% 1.2 MB/s
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  • 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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