TEST
YOUR USB

KINGSTON (ExtHD)

SA400S37240G 240GB

▲ 500 ▼

Release date ≈ Q1 2019.

Average Bench: 108% (5th of 639)

Based on 19 user benchmarks.  Device: VID 152d PID 0578 Model: KINGSTON SA400S37240G
Poor: 23%Average: 108% Great: 245%

Outstanding average bench

The KINGSTON SA400S37240G 240GB averaged 7.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the KINGSTON SA400S37240G 240GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 34MB/s
Avg. 4K Random Write Speed 19.5MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the KINGSTON SA400S37240G 240GB is 222%. This is a particularly wide range which indicates that the KINGSTON SA400S37240G 240GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 158MB/s
Avg. 4K Random Read Speed 12.8MB/s
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Average Bench

(Based on 19 samples)
Rank 5108%
Min Avg Max
22.5 Read 158 311
16.5 Write 119 278
15.8 Mixed 109 247
18 SusWrite 98.9 246
158% 121 MB/s
Min Avg Max
3.7 4K Read 12.8 24
4.2 4K Write 19.5 56.7
3.2 4K Mixed 11.3 27.5
1,096% 14.5 MB/s
Min Avg Max
8.2 DQ Read 18.2 27.3
12.7 DQ Write 34 66.7
8.8 DQ Mixed 18.5 30.3
1,852% 23.6 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
12GB free (System drive), PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 172 75 43 53 35 34 MB/s
141% Outstanding
Read 311
Write 190
Mixed 57.1
SusWrite 68.7
178% 157 MB/s
4K Read 18.9
4K Write 24.9
4K Mixed 9.4
1,237% 17.7 MB/s
DQ Read 21
DQ Write 31.2
DQ Mixed 8.8
1,438% 20.3 MB/s
59GB free (System drive), PID 0578
Operating at USB 3.0 Speed
SusWrite @10s intervals: 230 236 49 37 17 40 MB/s
135% Outstanding
Read 292
Write 243
Mixed 231
SusWrite 102
280% 217 MB/s
4K Read 17.7
4K Write 21.7
4K Mixed 18.7
1,440% 19.4 MB/s
DQ Read 21.9
DQ Write 27.9
DQ Mixed 22.9
1,809% 24.2 MB/s
75GB free, PID 0578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 42 42 42 42 42 42 MB/s
56.6% Above average
Read 42.3
Write 42.2
Mixed 34
SusWrite 42
55% 40.1 MB/s
4K Read 9.7
4K Write 12.7
4K Mixed 9
774% 10.5 MB/s
DQ Read 8.2
DQ Write 12.7
DQ Mixed 10.6
823% 10.5 MB/s
223GB free, PID 0578
Operating at USB 2.1 Speed
SusWrite @10s intervals: 20 19 21 20 21 21 MB/s
33.8% Below average
Read 34
Write 25.5
Mixed 28
SusWrite 20.4
35% 27 MB/s
4K Read 7.1
4K Write 7.4
4K Mixed 7.3
526% 7.27 MB/s
19 MORE »
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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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