TEST
YOUR USB

ST500LT0 (ExtHD)

12-1DG142 500GB

▲ 500 ▼

Release date ≈ Q4 2018.

Average Bench: 30.7% (93rd of 639)

Based on 13 user benchmarks.  Device: VID 18a5 PID 0420 Model: ST500LT0 12-1DG142
Poor: 16%Average: 30.7% Great: 40%

Poor average bench

The ST500LT0 12-1DG142 500GB averaged 69.2% 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. Sustained Write Speed 78.5MB/s
Avg. Sequential Write Speed 75.4MB/s

Good consistency

The range of scores (95th - 5th percentile) for the ST500LT0 12-1DG142 500GB is 24%. This is a relatively narrow range which indicates that the ST500LT0 12-1DG142 500GB performs reasonably consistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.48MB/s
Avg. Sequential Read Speed 78.4MB/s
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Average Bench

(Based on 13 samples)
Rank 9330.7%
Min Avg Max
38.4 Read 78.4 112
38.2 Write 75.4 102
25.2 Mixed 43.4 54.1
21.8 SusWrite 78.5 111
92.3% 68.9 MB/s
Min Avg Max
0.2 4K Read 0.48 0.7
0.4 4K Write 0.68 0.8
0.3 4K Mixed 0.53 0.6
43.2% 0.57 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
456GB free, PID 0420
Operating at USB 3.0 Speed
SusWrite @10s intervals: 106 106 107 107 107 107 MB/s
40.4% Average
Read 101
Write 102
Mixed 54.1
SusWrite 106
122% 90.7 MB/s
4K Read 0.5
4K Write 0.8
4K Mixed 0.6
50% 0.63 MB/s
162GB free, PID 0420
Operating at USB 3.0 Speed
SusWrite @10s intervals: 108 112 110 112 111 112 MB/s
36.7% Below average
Read 73.6
Write 65.5
Mixed 42.9
SusWrite 110
100% 73.1 MB/s
4K Read 0.5
4K Write 0.6
4K Mixed 0.5
39% 0.53 MB/s
162GB free, PID 0420
Operating at USB 3.0 Speed
SusWrite @10s intervals: 111 108 111 112 112 112 MB/s
36.6% Below average
Read 72
Write 65
Mixed 40.7
SusWrite 111
99% 72.2 MB/s
4K Read 0.4
4K Write 0.6
4K Mixed 0.5
39% 0.5 MB/s
234GB free, PID 0420
Operating at USB 3.0 Speed
SusWrite @10s intervals: 53 95 95 66 96 95 MB/s
33.8% Below average
Read 90
Write 93.5
Mixed 50
SusWrite 83.3
106% 79.2 MB/s
4K Read 0.5
4K Write 0.8
4K Mixed 0.6
50% 0.63 MB/s
112GB free, PID 0420
Operating at USB 3.0 Speed
SusWrite @10s intervals: 57 62 66 90 74 73 MB/s
28.8% Poor
Read 78
Write 73.4
Mixed 45.9
SusWrite 70
89% 66.8 MB/s
4K Read 0.5
4K Write 0.7
4K Mixed 0.6
46% 0.6 MB/s
73GB free, PID 0420
Operating at USB 3.0 Speed
SusWrite @10s intervals: 69 66 68 69 69 68 MB/s
27.8% Poor
Read 73.5
Write 86
Mixed 46
SusWrite 68.1
93% 68.4 MB/s
4K Read 0.5
4K Write 0.7
4K Mixed 0.5
43% 0.57 MB/s
236GB free, PID 0420
Operating at USB 3.0 Speed
SusWrite @10s intervals: 63 64 65 65 65 65 MB/s
23.4% Poor
Read 50.7
Write 55.2
Mixed 38.5
SusWrite 64.4
72% 52.2 MB/s
4K Read 0.5
4K Write 0.6
4K Mixed 0.5
39% 0.53 MB/s
231GB free, PID 0420
Operating at USB 2.1 Speed
SusWrite @10s intervals: 38 41 40 41 40 41 MB/s
16.4% Very poor
Read 39
Write 39.3
Mixed 27.4
SusWrite 40
49% 36.4 MB/s
4K Read 0.7
4K Write 0.6
4K Mixed 0.6
43% 0.63 MB/s
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