TEST
YOUR USB

Hitachi (ExtHD)

HDS723020ALA640 2TB

▲ 500 ▼

Release date ≈ Q2 2016.

Average Bench: 39.5% (42nd of 639)

Based on 19 user benchmarks.  Device: VID 067b PID 2773 Model: Hitachi HDS723020ALA640
Poor: 18%Average: 39.5% Great: 54%

Poor average bench

The Hitachi HDS723020ALA640 2TB averaged 60.4% 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 1.87MB/s
Avg. Sustained Write Speed 102MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Hitachi HDS723020ALA640 2TB is 36.2%. This is a relatively wide range which indicates that the Hitachi HDS723020ALA640 2TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.95MB/s
Avg. Sequential Read Speed 87.1MB/s
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Average Bench

(Based on 19 samples)
Rank 4239.5%
Min Avg Max
25.9 Read 87.1 132
28.6 Write 96.4 141
12.1 Mixed 56.9 102
41.1 SusWrite 102 132
117% 85.7 MB/s
Min Avg Max
0.2 4K Read 0.95 1.11
0.6 4K Write 1.87 2.1
0.39 4K Mixed 0.67 0.9
89.9% 1.16 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
1.5TB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 125 134 134 128 134 134 MB/s
53.4% Above average
Read 125
Write 123
Mixed 55.4
SusWrite 132
145% 109 MB/s
4K Read 1.1
4K Write 2.1
4K Mixed 0.7
99% 1.3 MB/s
843GB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 114 116 99 104 98 97 MB/s
48.5% Average
Read 131
Write 136
Mixed 75
SusWrite 105
149% 112 MB/s
4K Read 1.1
4K Write 2.1
4K Mixed 0.8
103% 1.33 MB/s
984GB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 113 115 121 112 120 118 MB/s
47.6% Average
Read 109
Write 119
Mixed 63.5
SusWrite 116
138% 102 MB/s
4K Read 1
4K Write 2
4K Mixed 0.9
102% 1.3 MB/s
932GB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 113 113 113 116 117 111 MB/s
46.4% Average
Read 107
Write 122
Mixed 72.2
SusWrite 114
142% 104 MB/s
4K Read 0.9
4K Write 1.9
4K Mixed 0.8
95% 1.2 MB/s
998GB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 118 109 118 118 116 117 MB/s
42.6% Average
Read 78
Write 124
Mixed 62.5
SusWrite 116
134% 95 MB/s
4K Read 0.9
4K Write 1.9
4K Mixed 0.8
95% 1.2 MB/s
573GB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 102 96 99 99 95 103 MB/s
41.6% Average
Read 98.9
Write 104
Mixed 57.3
SusWrite 99
121% 89.7 MB/s
4K Read 0.7
4K Write 1.8
4K Mixed 0.8
91% 1.1 MB/s
511GB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 118 120 116 122 121 108 MB/s
35.1% Below average
Read 52.5
Write 91.7
Mixed 25.2
SusWrite 117
103% 71.7 MB/s
4K Read 0.2
4K Write 0.6
4K Mixed 0.5
38% 0.43 MB/s
441GB free, PID 2773
Operating at USB 3.0 Speed
SusWrite @10s intervals: 76 81 81 79 79 81 MB/s
25.5% Poor
Read 25.9
Write 77.7
Mixed 31.4
SusWrite 79.3
80% 53.6 MB/s
4K Read 0.7
4K Write 1.4
4K Mixed 0.7
74% 0.93 MB/s
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