Seagate BarraCuda Pro SATA Product Manual, Rev. A
11
*During periods of drive idle, some offline activity may occur according to the S.M.A.R.T. specification, which may increase acoustic and power to operational levels
.
Table 3
DC power requirements (4TB)
6.0Gb mode
Voltage
+5V
+12V
Watts
Regulation
± 5%
Total
Avg Idle Current *
0.237
0.356
5.43
Advanced Idle Current *
Idle_A
0.238
0.36
5.48
Idle_B
0.184
0.304
4.56
Idle_C
0.179
0.083
1.89
Standby
0.17
0.011
0.98
Maximum Start Current
DC (peak DC)
0.684
1.315
19.20
AC (Peak DC)
1.52
1.90
Operating current (random read 4K16Q):
Typical DC
0.40
0.461
7.49
Maximum DC
0.40
0.461
Maximum DC (peak)
1.018
1.219
Operating current (random write 4K16Q)
Typical DC
0.279
0.457
6.84
Maximum DC
0.279
0.457
Maximum DC (peak)
0.633
1.256
Operating current (sequential read 64K16Q)
Typical DC
0.686
0.395
8.12
Maximum DC
0.686
0.395
Maximum DC (peak)
0.854
1.824
Operating current (sequential write 64K16Q)
Typical DC
0.629
0.394
7.82
Maximum DC
0.629
0.394
Maximum DC (peak)
0.732
0.619
