TEST
YOUR USB

LaCie (ExtHD)

12big USB3.1 40TB

▲ 500 ▼

Release date ≈ Q4 2017.

Average Bench: 220% (1st of 639)

Based on 4 user benchmarks.  Device: VID 059f PID 1087 Model: LaCie 12big USB3.1
Poor: 203%Average: 220% Great: 231%

Outstanding average bench

The LaCie 12big USB3.1 40TB averaged 120.0% higher than the peak scores attained by the group leaders. This is an excellent result which ranks the LaCie 12big USB3.1 40TB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 37.1MB/s
Avg. 4K Random Write Speed 23.8MB/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. 4K Random Read Speed 24.5MB/s
Avg. Sequential Read Speed 416MB/s
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Average Bench

(Based on 4 samples)
Rank 1220%
Min Avg Max
362 Read 416 435
249 Write 348 384
324 Mixed 384 406
340 SusWrite 340 340
500% 372 MB/s
Min Avg Max
23.3 4K Read 24.5 25.8
20.7 4K Write 23.8 25.8
15 4K Mixed 17.6 22.8
1,500% 22 MB/s
Min Avg Max
26 DQ Read 28 29.2
34.6 DQ Write 37.1 38.7
15.9 DQ Mixed 20 31.1
2,044% 28.3 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
11.5TB free, PID 1087
Operating at USB 3.1 Speed
231% Outstanding
Read 433
Write 380
Mixed 404
516% 406 MB/s
4K Read 25.8
4K Write 25.8
4K Mixed 15
1,485% 22.2 MB/s
DQ Read 29.2
DQ Write 38.7
DQ Mixed 16.8
1,996% 28.2 MB/s
19TB free, PID 1087
Operating at USB 3.1 Speed
231% Outstanding
Read 435
Write 384
Mixed 404
519% 408 MB/s
4K Read 24.7
4K Write 25.5
4K Mixed 16.7
1,528% 22.3 MB/s
DQ Read 29.1
DQ Write 37.9
DQ Mixed 16
1,941% 27.7 MB/s
10.5TB free, PID 1087
Operating at USB 3.1 Speed
215% Outstanding
Read 432
Write 379
Mixed 406
516% 406 MB/s
4K Read 24.2
4K Write 20.7
4K Mixed 16
1,340% 20.3 MB/s
DQ Read 26
DQ Write 37.1
DQ Mixed 15.9
1,902% 26.4 MB/s
23TB free, PID 1087
Operating at USB 3.1 Speed
SusWrite @10s intervals: 333 338 339 343 344 343 MB/s
203% Outstanding
Read 362
Write 249
Mixed 324
SusWrite 340
427% 319 MB/s
4K Read 23.3
4K Write 23.1
4K Mixed 22.8
1,648% 23.1 MB/s
DQ Read 27.6
DQ Write 34.6
DQ Mixed 31.1
2,337% 31.1 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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