TEST
YOUR USB

ST932042 (ExtHD)

3AS 320GB

▲ 500 ▼

Release date ≈ Q1 2015.

Average Bench: 15.2% (324th of 639)

Based on 68 user benchmarks.  Device: VID 152d PID 2329 Model: ST932042 3AS
Poor: 11%Average: 15.2% Great: 18%

Terrible average bench

The ST932042 3AS 320GB averaged 84.7% 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 1.01MB/s
Avg. 4K Random Mixed IO Speed 0.58MB/s

Excellent consistency

The range of scores (95th - 5th percentile) for the ST932042 3AS 320GB is just 7.11%. This is an extremely narrow range which indicates that the ST932042 3AS 320GB performs superbly consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.54MB/s
Avg. Sequential Read Speed 33.6MB/s
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Average Bench

(Based on 68 samples)
Rank 32415.2%
Min Avg Max
24.7 Read 33.6 39.2
19.1 Write 32 41
12.5 Mixed 24.9 38.1
18.1 SusWrite 33.3 42.1
41.8% 31 MB/s
Min Avg Max
0.33 4K Read 0.54 0.61
0.64 4K Write 1.01 1.39
0.23 4K Mixed 0.58 0.8
56.2% 0.71 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
274GB free, PID 2329
Operating at USB 2.0 Speed
SusWrite @10s intervals: 40 41 42 41 41 41 MB/s
18.5% Very poor
Read 39.4
Write 39.8
Mixed 28.6
SusWrite 41.2
51% 37.2 MB/s
4K Read 0.6
4K Write 1.2
4K Mixed 0.8
70% 0.87 MB/s
142GB free, PID 2329
Operating at USB 2.0 Speed
SusWrite @10s intervals: 41 41 42 41 42 41 MB/s
17.9% Very poor
Read 39
Write 38.6
Mixed 30
SusWrite 41.3
51% 37.2 MB/s
4K Read 0.6
4K Write 1
4K Mixed 0.7
60% 0.77 MB/s
298GB free, PID 2329
Operating at USB 2.0 Speed
SusWrite @10s intervals: 40 41 42 42 42 41 MB/s
17.7% Very poor
Read 38
Write 40.7
Mixed 30
SusWrite 41.2
51% 37.5 MB/s
4K Read 0.6
4K Write 1
4K Mixed 0.7
60% 0.77 MB/s
254GB free, PID 2329
Operating at USB 2.0 Speed
SusWrite @10s intervals: 35 35 35 35 36 36 MB/s
17.7% Very poor
Read 56.2
Write 30.1
Mixed 25.9
SusWrite 35.4
46% 36.9 MB/s
4K Read 1.1
4K Write 0.5
4K Mixed 0.7
45% 0.77 MB/s
122GB free, PID 2329
Operating at USB 2.0 Speed
SusWrite @10s intervals: 37 37 37 37 38 38 MB/s
17% Very poor
Read 36.8
Write 35.3
Mixed 27.8
SusWrite 37.5
47% 34.3 MB/s
4K Read 0.6
4K Write 1.1
4K Mixed 0.8
67% 0.83 MB/s
198GB free, PID 2329
Operating at USB 2.0 Speed
SusWrite @10s intervals: 36 37 39 38 40 39 MB/s
15.8% Very poor
Read 35.7
Write 33.7
Mixed 25.8
SusWrite 38.2
45% 33.3 MB/s
4K Read 0.5
4K Write 0.7
4K Mixed 0.6
46% 0.6 MB/s
67GB free, PID 2329
Operating at USB 2.0 Speed
SusWrite @10s intervals: 31 32 34 32 33 33 MB/s
13% Very poor
Read 27.7
Write 26.6
Mixed 20.6
SusWrite 32.5
37% 26.9 MB/s
4K Read 0.4
4K Write 0.6
4K Mixed 0.5
39% 0.5 MB/s
203GB free, PID 2329
Operating at USB 2.0 Speed
SusWrite @10s intervals: 23 23 23 23 23 22 MB/s
10.9% Very poor
Read 25.6
Write 19.2
Mixed 20.2
SusWrite 22.9
29% 22 MB/s
4K Read 0.4
4K Write 0.7
4K Mixed 0.6
46% 0.57 MB/s
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