TEST
YOUR USB

ZALMAN (ExtHD)

ZM-VE350 256GB

▲ 500 ▼

Release date ≈ Q3 2018.

Average Bench: 158% (1st of 639)

Based on 8 user benchmarks.  Device: VID 13fd PID 3e40 Model: ZALMAN ZM-VE350
Poor: 25%Average: 158% Great: 229%

Outstanding average bench

The ZALMAN ZM-VE350 256GB averaged 58.3% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the ZALMAN ZM-VE350 256GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 24.1MB/s
Avg. 4K-64Thread Mixed IO Speed 18.8MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the ZALMAN ZM-VE350 256GB is 204%. This is a particularly wide range which indicates that the ZALMAN ZM-VE350 256GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 17.8MB/s
Avg. Sequential Read Speed 308MB/s
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Average Bench

(Based on 8 samples)
Rank 1158%
Min Avg Max
28.9 Read 308 387
26.3 Write 266 389
22.7 Mixed 203 361
25.8 SusWrite 241 407
336% 254 MB/s
Min Avg Max
4.3 4K Read 17.8 23.9
4.7 4K Write 18.6 26
0.5 4K Mixed 15.5 24.7
1,225% 17.3 MB/s
Min Avg Max
5.9 DQ Read 20 26.5
6.7 DQ Write 24.1 38
0.5 DQ Mixed 18.8 30.3
1,532% 20.9 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
198GB free, PID 3e40
Operating at USB 3.0 Speed
SusWrite @10s intervals: 407 407 408 407 407 407 MB/s
229% Outstanding
Read 379
Write 389
Mixed 340
SusWrite 407
520% 379 MB/s
4K Read 22.1
4K Write 26
4K Mixed 23.2
1,755% 23.8 MB/s
DQ Read 24
DQ Write 35.2
DQ Mixed 27.3
2,215% 28.8 MB/s
234GB free, PID 3e40
Operating at USB 3.0 Speed
SusWrite @10s intervals: 292 292 292 291 292 291 MB/s
202% Outstanding
Read 369
Write 294
Mixed 265
SusWrite 291
403% 305 MB/s
4K Read 21
4K Write 26
4K Mixed 21.6
1,697% 22.9 MB/s
DQ Read 21.9
DQ Write 26.4
DQ Mixed 21.4
1,707% 23.2 MB/s
82GB free, PID 3e40
Operating at USB 3.0 Speed
SusWrite @10s intervals: 121 134 138 195 189 214 MB/s
158% Outstanding
Read 386
Write 166
Mixed 131
SusWrite 165
250% 212 MB/s
4K Read 18.8
4K Write 19.9
4K Mixed 19
1,393% 19.2 MB/s
DQ Read 22.7
DQ Write 24
DQ Mixed 19.5
1,564% 22.1 MB/s
148GB free, PID 3e40
Operating at USB 3.0 Speed
SusWrite @10s intervals: 350 341 20 20 20 19 MB/s
118% Outstanding
Read 352
Write 336
Mixed 22.7
SusWrite 128
254% 210 MB/s
4K Read 15.3
4K Write 11.5
4K Mixed 0.5
465% 9.1 MB/s
DQ Read 16.1
DQ Write 11.5
DQ Mixed 0.5
468% 9.37 MB/s
82GB free, PID 3e40
Operating at USB 3.0 Speed
SusWrite @10s intervals: 185 171 173 176 169 180 MB/s
102% Outstanding
Read 214
Write 188
Mixed 164
SusWrite 176
248% 185 MB/s
4K Read 17.5
4K Write 9.4
4K Mixed 8.4
670% 11.8 MB/s
DQ Read 5.9
DQ Write 6.7
DQ Mixed 6.9
484% 6.5 MB/s
158GB free, PID 3e40
Operating at USB 2.1 Speed
SusWrite @10s intervals: 26 24 25 24 27 29 MB/s
25.3% Poor
Read 28.9
Write 26.3
Mixed 27.1
SusWrite 25.8
37% 27 MB/s
4K Read 4.3
4K Write 4.7
4K Mixed 4.6
332% 4.53 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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