Product manual

Table 4 2TB Drive DC power requirements
Notes 6.0Gb mode
Voltage +5V +12V
Regulation ± 5%
Avg Idle Current * 0.28 0.36
Advanced Idle Current *
Idle_A 0.17 0.36
Idle_B 0.16 0.32
Idle_C 0.15 0.21
Standby 0.15 0.01
Maximum Start Current
DC (peak DC) 3 0.48 2.86
AC (Peak DC) 3 0.67 2.91
Delayed Motor Start (DC max) 3 0.16 0.01
Peak operating current (random read):
Typical DC 0.30 0.66
Maximum DC 3 0.31 0.71
Maximum DC (peak) 3 1.40 2.27
Peak operating current (random write)
Typical DC 0.30 0.63
Maximum DC 3 0.31 0.64
Maximum DC (peak) 3 0.67 2.24
Peak operating current (sequential read)
Typical DC 0.59 0.40
Maximum DC 3 0.60 0.41
Maximum DC (peak) 3 1.24 1.98
Peak operating current (sequential write)
Typical DC 0.49 0.43
Maximum DC 3 0.50 0.44
Maximum DC (peak) 3 0.80 1.87
Constellation ES.3 Serial ATA Product Manual, Rev. E 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.