TEST
YOUR USB

SABRENT (ExtHD)

ASM1351 256GB

▲ 500 ▼

Release date ≈ Q2 2018.

Average Bench: 179% (1st of 639)

Based on 3 user benchmarks.  Device: VID 174c PID 55aa Model: SABRENT ASM1351
Poor: 54%Average: 179% Great: 251%

Outstanding average bench

The SABRENT ASM1351 256GB averaged 79.5% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the SABRENT ASM1351 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 42.1MB/s
Avg. 4K Random Write Speed 35.7MB/s

Unknown consistency

There are too few samples to reasonably determine how consistently this USB perfroms. This result should be interpreted with caution.

Weaknesses

Avg. Sustained Write Speed 75.8MB/s
Avg. Sequential Read Speed 233MB/s
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Average Bench

(Based on 3 samples)
Rank 1179%
Min Avg Max
41.5 Read 233 349
38.3 Write 163 278
38.8 Mixed 171 272
37.8 SusWrite 75.8 114
203% 161 MB/s
Min Avg Max
11.4 4K Read 20.4 27.6
12 4K Write 35.7 57
9.3 4K Mixed 19 33.4
1,934% 25 MB/s
Min Avg Max
12.2 DQ Read 21.8 30.7
17.1 DQ Write 42.1 67.2
10.8 DQ Mixed 20.2 34.9
2,198% 28 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
238GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 157 101 92 85 116 133 MB/s
251% Outstanding
Read 310
Write 173
Mixed 201
SusWrite 114
247% 199 MB/s
4K Read 27.6
4K Write 57
4K Mixed 33.4
3,177% 39.3 MB/s
DQ Read 30.7
DQ Write 67.2
DQ Mixed 34.9
3,587% 44.3 MB/s
55GB free, PID 55aa
Operating at USB 3.1 Speed
233% Outstanding
Read 349
Write 278
Mixed 272
372% 300 MB/s
4K Read 22.3
4K Write 38
4K Mixed 14.2
1,858% 24.8 MB/s
DQ Read 22.4
DQ Write 42
DQ Mixed 14.8
2,013% 26.4 MB/s
68GB free, PID 55aa
Operating at USB 2.1 Speed
SusWrite @10s intervals: 36 37 38 39 39 38 MB/s
53.8% Above average
Read 41.5
Write 38.3
Mixed 38.8
SusWrite 37.8
53% 39.1 MB/s
4K Read 11.4
4K Write 12
4K Mixed 9.3
767% 10.9 MB/s
DQ Read 12.2
DQ Write 17.1
DQ Mixed 10.8
994% 13.4 MB/s
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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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