TEST
YOUR USB

ASMedia (ExtHD)

USB 3.0 Device 500GB

▲ 500 ▼

Release date ≈ Q4 2018.

Average Bench: 38.7% (45th of 639)

Based on 28 user benchmarks.  Device: VID 174c PID 55aa Model: ASMedia USB 3.0 Device
Poor: 8%Average: 38.7% Great: 162%

Poor average bench

The ASMedia USB 3.0 Device 500GB averaged 61.2% 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. 4K-64Thread Write Speed 30.4MB/s
Avg. 4K-64Thread Mixed IO Speed 27.5MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the ASMedia USB 3.0 Device 500GB is 153%. This is a particularly wide range which indicates that the ASMedia USB 3.0 Device 500GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 2.02MB/s
Avg. Sequential Read Speed 84.3MB/s
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Average Bench

(Based on 28 samples)
Rank 4538.7%
Min Avg Max
8.5 Read 84.3 306
9 Write 78.8 223
4.3 Mixed 54.5 239
10.4 SusWrite 73.8 214
97.2% 72.8 MB/s
Min Avg Max
0 4K Read 2.02 21
0.3 4K Write 3.24 25.3
0.1 4K Mixed 2.31 23.4
197% 2.53 MB/s
Min Avg Max
24.1 DQ Read 24.8 25.5
27 DQ Write 30.4 33.8
25.1 DQ Mixed 27.5 29.8
2,060% 27.5 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
366GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 95 97 96 97 97 97 MB/s
53% Above average
Read 94.2
Write 103
Mixed 66.6
SusWrite 96.8
123% 90.2 MB/s
4K Read 0.5
4K Write 5.9
4K Mixed 1.2
243% 2.53 MB/s
394GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 121 126 128 126 127 128 MB/s
49.5% Average
Read 128
Write 126
Mixed 66.3
SusWrite 126
149% 112 MB/s
4K Read 0.7
4K Write 1.1
4K Mixed 0.8
67% 0.87 MB/s
394GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 112 111 112 111 112 112 MB/s
46.3% Average
Read 127
Write 121
Mixed 64.9
SusWrite 112
141% 106 MB/s
4K Read 0.7
4K Write 1.1
4K Mixed 0.8
67% 0.87 MB/s
224GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 103 102 104 103 100 100 MB/s
44.6% Average
Read 119
Write 116
Mixed 74.2
SusWrite 102
137% 103 MB/s
4K Read 0.7
4K Write 1.6
4K Mixed 0.8
84% 1.03 MB/s
437GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 113 113 114 112 113 114 MB/s
43.8% Average
Read 99.2
Write 112
Mixed 39.2
SusWrite 113
123% 91 MB/s
4K Read 0.5
4K Write 1.5
4K Mixed 0.5
70% 0.83 MB/s
328GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 90 81 81 86 80 88 MB/s
39.9% Below average
Read 124
Write 109
Mixed 62.2
SusWrite 84.4
123% 94.8 MB/s
4K Read 0.7
4K Write 1.1
4K Mixed 0.8
67% 0.87 MB/s
67GB free, PID 55aa
Operating at USB 3.0 Speed
SusWrite @10s intervals: 51 54 55 54 54 55 MB/s
23.8% Poor
Read 57.2
Write 56.4
Mixed 35.7
SusWrite 53.9
68% 50.8 MB/s
4K Read 0.5
4K Write 1.2
4K Mixed 0.6
63% 0.77 MB/s
465GB free, PID 55aa
Operating at USB 2.1 Speed
SusWrite @10s intervals: 11 10 10 10 10 10 MB/s
11.3% Very poor
Read 38
Write 34.3
Mixed 27.4
SusWrite 10.4
35% 27.5 MB/s
4K Read 0.7
4K Write 1.1
4K Mixed 0.8
67% 0.87 MB/s
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