TEST
YOUR USB

Seagate (ExtHD)

Expansion 1TB

▲ 500 ▼

Release date ≈ Q3 2015.

Average Bench: 29.1% (112th of 639)

Based on 1,630 user benchmarks.  Device: VID 0bc2 PID 2322 Model: Seagate Expansion
Poor: 10%Average: 29.1% Great: 48%

Very poor average bench

The Seagate Expansion 1TB averaged 70.9% 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 2.45MB/s
Avg. Sustained Write Speed 63.6MB/s

Above average consistency

The range of scores (95th - 5th percentile) for the Seagate Expansion 1TB is 38.2%. This is a relatively wide range which indicates that the Seagate Expansion 1TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 0.9MB/s
Avg. Sequential Read Speed 51.5MB/s
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Average Bench

(Based on 1,630 samples)
Rank 11229.1%
Min Avg Max
8.91 Read 51.5 105
11.1 Write 62.6 124
8.61 Mixed 42.7 86.6
11.8 SusWrite 63.6 125
76.4% 55.1 MB/s
Min Avg Max
0.3 4K Read 0.9 1.8
0.7 4K Write 2.45 4.55
0.1 4K Mixed 0.54 0.9
105% 1.3 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
630GB free, PID 2322
Operating at USB 3.0 Speed
SusWrite @10s intervals: 105 105 105 104 103 101 MB/s
46.3% Average
Read 96.1
Write 120
Mixed 97.2
SusWrite 104
145% 104 MB/s
4K Read 2.3
4K Write 3
4K Mixed 0.7
134% 2 MB/s
454GB free, PID 2322
SusWrite @10s intervals: 110 106 108 104 109 106 MB/s
44.8% Average
Read 49
Write 106
Mixed 35.7
SusWrite 107
108% 74.6 MB/s
4K Read 1.1
4K Write 4.6
4K Mixed 0.5
178% 2.07 MB/s
812GB free, PID 2322
Operating at USB 3.0 Speed
SusWrite @10s intervals: 71 76 77 74 77 78 MB/s
39.5% Below average
Read 107
Write 72.4
Mixed 55.9
SusWrite 75.3
100% 77.7 MB/s
4K Read 0.5
4K Write 2.4
4K Mixed 0.9
114% 1.27 MB/s
265GB free, PID 2322
Operating at USB 3.0 Speed
SusWrite @10s intervals: 96 87 97 93 92 97 MB/s
38.9% Below average
Read 78
Write 118
Mixed 84.5
SusWrite 93.7
132% 93.6 MB/s
4K Read 1.6
4K Write 2.2
4K Mixed 0.7
105% 1.5 MB/s
587GB free, PID 2322
Operating at USB 3.0 Speed
SusWrite @10s intervals: 74 78 75 77 77 78 MB/s
37.7% Below average
Read 94.3
Write 96.5
Mixed 80.2
SusWrite 76.6
117% 86.9 MB/s
4K Read 1.1
4K Write 2.3
4K Mixed 0.6
103% 1.33 MB/s
482GB free, PID 2322
Operating at USB 3.0 Speed
SusWrite @10s intervals: 106 111 111 112 111 111 MB/s
35.6% Below average
Read 50.3
Write 121
Mixed 56
SusWrite 110
124% 84.5 MB/s
4K Read 0.9
4K Write 1.3
4K Mixed 0.3
58% 0.83 MB/s
482GB free, PID 2322
Operating at USB 3.0 Speed
SusWrite @10s intervals: 108 102 111 111 112 111 MB/s
35.3% Below average
Read 50.5
Write 122
Mixed 56.2
SusWrite 109
124% 84.4 MB/s
4K Read 0.8
4K Write 1.3
4K Mixed 0.3
57% 0.8 MB/s
210GB free, PID 2322
Operating at USB 3.0 Speed
SusWrite @10s intervals: 80 77 71 70 72 75 MB/s
33% Below average
Read 48.5
Write 97.6
Mixed 67.6
SusWrite 74.2
104% 72 MB/s
4K Read 1.1
4K Write 3.1
4K Mixed 0.5
126% 1.57 MB/s
1,630 MORE »
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