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Seagate Enterprise Capacity 3.5 HDD v4 Serial ATA Product Manual, Rev. C 9
*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 4 2TB Drive DC power requirements
Notes 6.0Gb mode
Voltage +5V +12V Watts
Regulation ± 5% Total
Avg Idle Current * 0.19 0.23 3.71
Advanced Idle Current *
Idle_A 0.14 0.24 3.60
Idle_B 0.12 0.21 3.19
Idle_C 0.13 0.14 2.37
Standby 0.12 0.01 0.69
Maximum Start Current
DC (peak DC) 3 0.36 3.63 45.36
AC (Peak DC) 3 0.57 2.98 38.61
Delayed Motor Start (DC max) 3 0.12 0.01 0.72
Peak operating current (random read):
Typical DC 0.23 0.57 7.92
Maximum DC 3 0.25 0.59 8.33
Maximum DC (peak) 3 1.09 2.22 32.09
Peak operating current (random write)
Typical DC 0.23 0.39 5.84
Maximum DC 3 0.25 0.41 6.17
Maximum DC (peak) 3 1.38 2.29 34.38
Peak operating current (sequential read)
Typical DC 0.52 0.27 5.91
Maximum DC 3 0.57 0.28 6.21
Maximum DC (peak) 3 0.86 0.72 12.94
Peak operating current (sequential write)
Typical DC 0.45 0.30 5.89
Maximum DC 3 0.48 0.32 6.24
Maximum DC (peak) 3 0.61 0.74 11.93