TEST
YOUR USB

OWC (ExtHD)

Express USB 3.0 128GB

▲ 500 ▼

Release date ≈ Q4 2020.

Average Bench: 217% (1st of 639)

Based on 2 user benchmarks.  Device: VID 1e91 PID a0a9 Model: OWC Express USB 3.0
Poor: 214%Average: 217% Great: 219%

Outstanding average bench

The OWC Express USB 3.0 128GB averaged 116.6% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the OWC Express USB 3.0 128GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 56.8MB/s
Avg. 4K Random Write Speed 41.2MB/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. Sequential Read Speed 212MB/s
Avg. 4K Random Read Speed 16.7MB/s
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Average Bench

(Based on 2 samples)
Rank 1217%
Min Avg Max
169 Read 212 255
254 Write 260 265
184 Mixed 193 203
247 SusWrite 254 260
319% 230 MB/s
Min Avg Max
16.1 4K Read 16.7 17.2
38.6 4K Write 41.2 43.8
16.7 4K Mixed 19 21.4
2,111% 25.6 MB/s
Min Avg Max
19.3 DQ Read 19.5 19.6
56 DQ Write 56.8 57.6
21.1 DQ Mixed 22.9 24.7
2783% 33 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
86GB free, PID a0a9
Operating at USB 3.0 Speed
SusWrite @10s intervals: 220 256 260 276 269 277 MB/s
219% Outstanding
Read 169
Write 265
Mixed 203
SusWrite 260
320% 224 MB/s
4K Read 16.1
4K Write 43.8
4K Mixed 21.4
2,277% 27.1 MB/s
DQ Read 19.3
DQ Write 57.6
DQ Mixed 21.1
2,748% 32.7 MB/s
23GB free, PID a0a9
Operating at USB 3.0 Speed
SusWrite @10s intervals: 232 246 249 265 238 255 MB/s
214% Outstanding
Read 255
Write 254
Mixed 184
SusWrite 247
318% 235 MB/s
4K Read 17.2
4K Write 38.6
4K Mixed 16.7
1,945% 24.2 MB/s
DQ Read 19.6
DQ Write 56
DQ Mixed 24.7
2,818% 33.4 MB/s
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Group Test Results

  • 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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