TEST
YOUR USB

LaCie (ExtHD)

d2 Quadra v3C 4TB

▲ 500 ▼

Release date ≈ Q1 2017.

Average Bench: 50.6% (22nd of 639)

Based on 14 user benchmarks.  Device: VID 059f PID 107e Model: LaCie d2 Quadra v3C
Poor: 21%Average: 50.6% Great: 73%

Average average bench

The LaCie d2 Quadra v3C 4TB averaged 49.4% 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 2.85MB/s
Avg. Sequential Write Speed 111MB/s

Below average consistency

The range of scores (95th - 5th percentile) for the LaCie d2 Quadra v3C 4TB is 52.2%. This is a relatively wide range which indicates that the LaCie d2 Quadra v3C 4TB performs inconsistently under varying real world conditions.

Weaknesses

Avg. 4K Random Read Speed 1.25MB/s
Avg. Sequential Read Speed 123MB/s
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Average Bench

(Based on 14 samples)
Rank 2250.6%
Min Avg Max
30.4 Read 123 217
24.9 Write 111 185
24 Mixed 72.8 151
7.9 SusWrite 105 174
136% 103 MB/s
Min Avg Max
0.7 4K Read 1.25 1.4
1.7 4K Write 2.85 5
0.33 4K Mixed 0.86 1.3
131% 1.65 MB/s
User Benchmarks BenchSequentialRandom 4kDeep queue 4k
The fastest USB (mainstream) averages a speed of 100%
3.5TB free, PID 107e
Operating at USB 3.0 Speed
SusWrite @10s intervals: 174 157 156 176 188 194 MB/s
85.1% Excellent
Read 217
Write 185
Mixed 83.4
SusWrite 174
214% 165 MB/s
4K Read 1.3
4K Write 5
4K Mixed 1.2
216% 2.5 MB/s
1.5TB free, PID 107e
Operating at USB 3.0 Speed
SusWrite @10s intervals: 165 163 166 166 156 155 MB/s
73.4% Very good
Read 157
Write 145
Mixed 71.7
SusWrite 162
178% 134 MB/s
4K Read 1.3
4K Write 4.9
4K Mixed 1.1
209% 2.43 MB/s
732GB free, PID 107e
Operating at USB 3.0 Speed
SusWrite @10s intervals: 164 168 168 165 167 168 MB/s
69.6% Good
Read 178
Write 144
Mixed 76.4
SusWrite 167
185% 141 MB/s
4K Read 1.4
4K Write 2.3
4K Mixed 1
117% 1.57 MB/s
626GB free, PID 107e
Operating at USB 3.0 Speed
SusWrite @10s intervals: 132 137 138 138 139 138 MB/s
56.6% Above average
Read 139
Write 110
Mixed 66.2
SusWrite 137
149% 113 MB/s
4K Read 1.4
4K Write 2
4K Mixed 1
107% 1.47 MB/s
714GB free, PID 107e
Operating at USB 3.0 Speed
SusWrite @10s intervals: 132 137 138 139 138 138 MB/s
55.7% Above average
Read 136
Write 127
Mixed 65.2
SusWrite 137
155% 116 MB/s
4K Read 1.4
4K Write 1.9
4K Mixed 0.9
100% 1.4 MB/s
2.5TB free, PID 107e
Operating at USB 3.0 Speed
SusWrite @10s intervals: 77 109 117 112 139 146 MB/s
55.6% Above average
Read 150
Write 148
Mixed 72.3
SusWrite 117
160% 122 MB/s
4K Read 1.3
4K Write 2.6
4K Mixed 1.2
134% 1.7 MB/s
2TB free, PID 107e
Operating at USB 3.0 Speed
SusWrite @10s intervals: 94 93 94 93 93 92 MB/s
37.4% Below average
Read 80.5
Write 86
Mixed 46
SusWrite 93.3
104% 76.4 MB/s
4K Read 0.7
4K Write 1.7
4K Mixed 0.6
81% 1 MB/s
402GB free, PID 107e
Operating at USB 3.0 Speed
SusWrite @10s intervals: 8.3 6.3 8.5 8.9 6.5 8.9 MB/s
25.3% Poor
Read 114
Write 80.2
Mixed 52
SusWrite 7.9
75% 63.4 MB/s
4K Read 1.4
4K Write 2.2
4K Mixed 1.1
117% 1.57 MB/s
546GB free, PID 107e
Operating at USB 2.1 Speed
SusWrite @10s intervals: 25 25 25 24 25 25 MB/s
21.1% Poor
Read 30.4
Write 24.9
Mixed 24
SusWrite 24.6
35% 26 MB/s
4K Read 1.2
4K Write 3.6
4K Mixed 1.1
164% 1.97 MB/s
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