TEST
YOUR USB

Seagate (ExtHD)

Expansion 120GB

▲ 500 ▼

Release date ≈ Q1 2019.

Average Bench: 79% (6th of 639)

Based on 7 user benchmarks.  Device: VID 0bc2 PID 2320 Model: Seagate Expansion
Poor: 13%Average: 79% Great: 163%

Good average bench

The Seagate Expansion 120GB averaged 21.0% lower than the peak scores attained by the group leaders. This is an excellent result which ranks the Seagate Expansion 120GB near the top of the comparison list.

Strengths

Avg. 4K-64Thread Write Speed 27.1MB/s
Avg. 4K-64Thread Mixed IO Speed 17MB/s

Terrible consistency

The range of scores (95th - 5th percentile) for the Seagate Expansion 120GB is 149%. This is a particularly wide range which indicates that the Seagate Expansion 120GB performs inconsistently under varying real world conditions.

Weaknesses

Avg. Sequential Read Speed 109MB/s
Avg. Sustained Write Speed 62.6MB/s
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Average Bench

(Based on 7 samples)
Rank 679%
Min Avg Max
28.5 Read 109 248
22.8 Write 97.2 237
22.5 Mixed 80.8 237
23.6 SusWrite 62.6 191
115% 87.3 MB/s
Min Avg Max
0.5 4K Read 11.5 22
1.2 4K Write 15.2 25.9
0.6 4K Mixed 11.2 23.4
942% 12.7 MB/s
Min Avg Max
10.7 DQ Read 16.5 24.2
14.3 DQ Write 27.1 37.7
7.2 DQ Mixed 17 28.4
1,563% 20.2 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
45GB free, PID 2320
Operating at USB 3.0 Speed
SusWrite @10s intervals: 242 166 180 202 199 159 MB/s
163% Outstanding
Read 248
Write 237
Mixed 237
SusWrite 191
309% 228 MB/s
4K Read 22
4K Write 25.9
4K Mixed 23.4
1,758% 23.8 MB/s
DQ Read 24.2
DQ Write 37.7
DQ Mixed 28.4
2,338% 30.1 MB/s
111GB free, PID 2320
Operating at USB 3.0 Speed
SusWrite @10s intervals: 106 99 98 87 100 84 MB/s
127% Outstanding
Read 174
Write 126
Mixed 152
SusWrite 95.7
179% 137 MB/s
4K Read 15.2
4K Write 25.2
4K Mixed 18.4
1,539% 19.6 MB/s
DQ Read 19.3
DQ Write 29.2
DQ Mixed 22.1
1,816% 23.5 MB/s
111GB free, PID 2320
Operating at USB 3.0 Speed
SusWrite @10s intervals: 150 78 61 48 49 63 MB/s
122% Outstanding
Read 228
Write 224
Mixed 81
SusWrite 74.7
190% 152 MB/s
4K Read 16.6
4K Write 22.4
4K Mixed 17.9
1,432% 19 MB/s
DQ Read 19.9
DQ Write 37.5
DQ Mixed 16.8
1,921% 24.7 MB/s
76GB free, PID 2320
Operating at USB 2.1 Speed
SusWrite @10s intervals: 39 39 39 39 39 39 MB/s
58.9% Above average
Read 33.2
Write 31
Mixed 32.7
SusWrite 38.8
47% 33.9 MB/s
4K Read 9.9
4K Write 14.1
4K Mixed 10.7
880% 11.6 MB/s
DQ Read 10.7
DQ Write 15.3
DQ Mixed 11.9
965% 12.6 MB/s
2GB free, PID 2320
Operating at USB 2.1 Speed
SusWrite @10s intervals: 24 25 25 26 26 25 MB/s
13.4% Very poor
Read 28.5
Write 26.1
Mixed 22.5
SusWrite 25.1
34% 25.5 MB/s
4K Read 0.5
4K Write 1.2
4K Mixed 0.6
63% 0.77 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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