TEST
YOUR USB

ST932042 (ExtHD)

3AS 320GB

▲ 500 ▼

Release date ≈ Q3 2015.

Average Bench: 21.8% (201st of 639)

Based on 25 user benchmarks.  Device: VID 1f75 PID 0621 Model: ST932042 3AS
Poor: 12%Average: 21.8% Great: 35%

Very poor average bench

The ST932042 3AS 320GB averaged 78.2% 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.

Strengths

Avg. 4K Random Write Speed 1.07MB/s
Avg. Sustained Write Speed 52.5MB/s

Good consistency

The range of scores (95th - 5th percentile) for the ST932042 3AS 320GB is 23.6%. This is a relatively narrow range which indicates that the ST932042 3AS 320GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.53MB/s
Avg. Sequential Read Speed 50.6MB/s
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Average Bench

(Based on 25 samples)
Rank 20121.8%
Min Avg Max
21.4 Read 50.6 90.5
18 Write 49 90.5
14.4 Mixed 35.5 69.4
19.8 SusWrite 52.5 89.6
63.4% 46.9 MB/s
Min Avg Max
0.29 4K Read 0.53 0.6
0.5 4K Write 1.07 1.5
0.2 4K Mixed 0.63 0.9
59.5% 0.74 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
261GB free, PID 0621
Operating at USB 3.0 Speed
SusWrite @10s intervals: 83 86 86 89 91 83 MB/s
36% Below average
Read 91.7
Write 93.5
Mixed 52
SusWrite 86.4
108% 80.9 MB/s
4K Read 0.6
4K Write 1.2
4K Mixed 0.8
70% 0.87 MB/s
234GB free, PID 0621
Operating at USB 3.0 Speed
SusWrite @10s intervals: 72 72 73 75 74 72 MB/s
30% Poor
Read 70.2
Write 70.7
Mixed 50.9
SusWrite 73.2
90% 66.2 MB/s
4K Read 0.6
4K Write 1.2
4K Mixed 0.7
67% 0.83 MB/s
150GB free, PID 0621
Operating at USB 2.1 Speed
SusWrite @10s intervals: 37 37 37 35 35 35 MB/s
17.9% Very poor
Read 37
Write 32.5
Mixed 26.7
SusWrite 35.8
44% 33 MB/s
4K Read 0.6
4K Write 1.5
4K Mixed 0.8
80% 0.97 MB/s
269GB free, PID 0621
Operating at USB 2.1 Speed
SusWrite @10s intervals: 40 39 40 38 38 38 MB/s
17.7% Very poor
Read 37.3
Write 36.7
Mixed 27.3
SusWrite 38.8
48% 35 MB/s
4K Read 0.6
4K Write 1.2
4K Mixed 0.8
70% 0.87 MB/s
75GB free, PID 0621
Operating at USB 2.1 Speed
SusWrite @10s intervals: 36 38 39 39 31 29 MB/s
15.5% Very poor
Read 36.3
Write 35.2
Mixed 27.8
SusWrite 35.3
46% 33.7 MB/s
4K Read 0.5
4K Write 0.8
4K Mixed 0.6
50% 0.63 MB/s
296GB free, PID 0621
Operating at USB 2.1 Speed
SusWrite @10s intervals: 21 22 22 22 22 22 MB/s
12.7% Very poor
Read 30.1
Write 27
Mixed 22.9
SusWrite 21.9
34% 25.5 MB/s
4K Read 0.6
4K Write 1.1
4K Mixed 0.8
67% 0.83 MB/s
74GB free, PID 0621
Operating at USB 2.1 Speed
SusWrite @10s intervals: 21 20 20 19 19 19 MB/s
12.3% Very poor
Read 26.2
Write 18
Mixed 17.9
SusWrite 19.8
27% 20.5 MB/s
4K Read 0.6
4K Write 1.3
4K Mixed 0.8
74% 0.9 MB/s
75GB free, PID 0621
Operating at USB 2.1 Speed
SusWrite @10s intervals: 29 34 28 27 26 27 MB/s
11.7% Very poor
Read 26.7
Write 30.4
Mixed 14.4
SusWrite 28.6
34% 25 MB/s
4K Read 0.3
4K Write 0.5
4K Mixed 0.5
35% 0.43 MB/s
25 MORE »
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