TEST
YOUR USB

JMicron (ExtHD)

Generic DISK00 12TB

▲ 500 ▼

Release date ≈ Q2 2021.

Average Bench: 28.2% (122nd of 639)

Based on 3 user benchmarks.  Device: VID null PID null Model: JMicron Generic DISK00
Poor: 13%Average: 28.2% Great: 53%

Very poor average bench

The JMicron Generic DISK00 12TB averaged 71.8% lower than the peak scores attained by the group leaders. This isn't a great result which indicates that there are much faster alternatives on the comparison list.

Strengths

Avg. 4K Random Write Speed 1.4MB/s
Avg. Sequential Write Speed 65MB/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 1.57MB/s
Avg. 4K Random Mixed IO Speed 0.53MB/s
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Average Bench

(Based on 3 samples)
Rank 12228.2%
Min Avg Max
37.4 Read 100 225
35.3 Write 65 122
30.7 Mixed 41.8 62
16.2 SusWrite 41.3 69.8
76.1% 62 MB/s
Min Avg Max
1.4 4K Read 1.57 1.7
1.2 4K Write 1.4 1.6
0.5 4K Mixed 0.53 0.6
71.6% 1.17 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
204GB free, PID null
SusWrite @10s intervals: 70 71 69 68 70 71 MB/s
52.5% Above average
Read 225
Write 122
Mixed 62
SusWrite 69.8
139% 120 MB/s
4K Read 1.7
4K Write 1.4
4K Mixed 0.5
71% 1.2 MB/s
130GB free, PID null
SusWrite @10s intervals: 38 38 35 39 39 39 MB/s
19% Very poor
Read 37.8
Write 35.3
Mixed 32.6
SusWrite 37.9
49% 35.9 MB/s
4K Read 1.6
4K Write 1.6
4K Mixed 0.5
77% 1.23 MB/s
130GB free, PID null
SusWrite @10s intervals: 14 15 16 17 19 17 MB/s
13% Very poor
Read 37.4
Write 37.5
Mixed 30.7
SusWrite 16.2
40% 30.5 MB/s
4K Read 1.4
4K Write 1.2
4K Mixed 0.6
66% 1.07 MB/s
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