TEST
YOUR USB

KINGSTON (ExtHD)

SA400S3 240GB

▲ 500 ▼

Release date ≈ Q1 2018.

Average Bench: 90.6% (5th of 639)

Based on 14 user benchmarks.  Device: VID 2537 PID 1066 Model: KINGSTON SA400S3
Poor: 48%Average: 90.6% Great: 173%

Excellent average bench

The KINGSTON SA400S3 240GB averaged just 9.4% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the KINGSTON SA400S3 240GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 24.3MB/s
Avg. 4K Random Write Speed 17.2MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the KINGSTON SA400S3 240GB is 125%. This is a particularly wide range which indicates that the KINGSTON SA400S3 240GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 115MB/s
Avg. 4K Random Read Speed 12MB/s
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Average Bench

(Based on 14 samples)
Rank 590.6%
Min Avg Max
19 Read 115 301
18.8 Write 83.1 373
21.3 Mixed 110 331
38.4 SusWrite 97.5 231
136% 101 MB/s
Min Avg Max
0.81 4K Read 12 17.6
1.99 4K Write 17.2 26
2.86 4K Mixed 8.55 20.3
919% 12.6 MB/s
Min Avg Max
7.23 DQ Read 14.8 20.1
12.4 DQ Write 24.3 38.6
3.94 DQ Mixed 10.4 25.3
1,235% 16.5 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
197GB free, PID 1066
Operating at USB 3.0 Speed
SusWrite @10s intervals: 184 182 182 123 73 58 MB/s
137% Outstanding
Read 245
Write 162
Mixed 190
SusWrite 134
236% 183 MB/s
4K Read 17.6
4K Write 22.2
4K Mixed 13.2
1,269% 17.7 MB/s
DQ Read 19.3
DQ Write 33.2
DQ Mixed 16.9
1,776% 23.1 MB/s
17GB free, PID 1066
Operating at USB 2.1 Speed
SusWrite @10s intervals: 43 43 43 43 43 43 MB/s
77.9% Very good
Read 36.7
Write 19
Mixed 36.5
SusWrite 42.8
46% 33.8 MB/s
4K Read 14.1
4K Write 19.5
4K Mixed 1
750% 11.5 MB/s
DQ Read 13.8
DQ Write 9.6
DQ Mixed 0.9
408% 8.1 MB/s
17GB free, PID 1066
Operating at USB 2.1 Speed
SusWrite @10s intervals: 38 38 38 39 39 39 MB/s
74.4% Very good
Read 39.4
Write 39
Mixed 38.5
SusWrite 38.4
53% 38.8 MB/s
4K Read 13.2
4K Write 18.6
4K Mixed 11.7
1,080% 14.5 MB/s
DQ Read 14.4
DQ Write 21
DQ Mixed 12.9
1,206% 16.1 MB/s
14 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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