TEST
YOUR USB

BUFFALO (ExtHD)

External HDD 4TB

▲ 500 ▼

Release date ≈ Q4 2018.

Average Bench: 52.1% (21st of 639)

Based on 74 user benchmarks.  Device: VID 0411 PID 02c1 Model: BUFFALO External HDD
Poor: 17%Average: 52.1% Great: 79%

Average average bench

The BUFFALO External HDD 4TB averaged 47.8% 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 4.14MB/s
Avg. Sustained Write Speed 108MB/s

Poor consistency

The range of scores (95th - 5th percentile) for the BUFFALO External HDD 4TB is 61.6%. This is a particularly wide range which indicates that the BUFFALO External HDD 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 2.55MB/s
Avg. Sequential Read Speed 106MB/s
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Average Bench

(Based on 74 samples)
Rank 2152.1%
Min Avg Max
28.5 Read 106 177
23.1 Write 100 175
23.2 Mixed 68.9 107
23.7 SusWrite 108 182
129% 95.7 MB/s
Min Avg Max
0.73 4K Read 2.55 8.38
0.8 4K Write 4.14 7.12
0.4 4K Mixed 0.81 1.2
178% 2.5 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
3.5TB free, PID 02c1
Operating at USB 3.0 Speed
SusWrite @10s intervals: 177 184 182 177 178 180 MB/s
86% Excellent
Read 170
Write 149
Mixed 80.8
SusWrite 180
193% 145 MB/s
4K Read 3.2
4K Write 7
4K Mixed 0.9
281% 3.7 MB/s
3.5TB free, PID 02c1
Operating at USB 3.0 Speed
SusWrite @10s intervals: 180 183 186 185 185 178 MB/s
77.5% Very good
Read 158
Write 160
Mixed 108
SusWrite 183
208% 152 MB/s
4K Read 8
4K Write 4.2
4K Mixed 1.9
237% 4.7 MB/s
209GB free, PID 02c1
Operating at USB 3.0 Speed
SusWrite @10s intervals: 138 137 137 138 137 138 MB/s
54.6% Above average
Read 109
Write 115
Mixed 68.7
SusWrite 138
147% 108 MB/s
4K Read 0.9
4K Write 2.8
4K Mixed 1
133% 1.57 MB/s
1TB free, PID 02c1
Operating at USB 3.0 Speed
SusWrite @10s intervals: 109 108 107 103 101 103 MB/s
50.8% Above average
Read 173
Write 135
Mixed 54.5
SusWrite 105
147% 117 MB/s
4K Read 2.3
4K Write 0.7
4K Mixed 0.6
53% 1.2 MB/s
314GB free, PID 02c1
Operating at USB 3.0 Speed
SusWrite @10s intervals: 99 98 99 99 98 98 MB/s
47.2% Average
Read 119
Write 104
Mixed 91.3
SusWrite 98.3
138% 103 MB/s
4K Read 0.9
4K Write 2.7
4K Mixed 1.2
136% 1.6 MB/s
0GB free, PID 02c1
Operating at USB 3.0 Speed
SusWrite @10s intervals: 80 83 81 81 84 80 MB/s
36.2% Below average
Read 76.7
Write 83.8
Mixed 59
SusWrite 81.7
103% 75.3 MB/s
4K Read 0.8
4K Write 2.3
4K Mixed 0.9
112% 1.33 MB/s
74 MORE »
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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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