Seagate Enterprise NAS HDD Product Manual, Rev. C
8
Drive specifications
2.5
Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See
2.5.1
Power consumption
Power requirements for the drives are listed in the table on page 9. Typical power measurements are based on an average of drives
tested, under nominal conditions, using 5.0V and 12.0V input voltage at 25°C ambient temperature.
*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 2
DC power requirements (8TB models)
6.0Gb mode
Voltage
+5V
+12V
Watts
Regulation
± 5%
Total
Avg Idle Current *
0.33
0.58
8.63
Advanced Idle Current *
Idle_A
0.19
0.55
7.53
Idle_B
0.13
0.48
6.38
Idle_C
0.14
0.28
4.08
Standby_Z
0.12
0.01
0.71
Maximum Start Current
DC (peak DC)
0.54
1.91
25.60
AC (Peak DC)
0.64
2.30
Delayed Motor Start (DC max)
0.21
0.72
Peak operating current (random read 4K16Q):
Typical DC
0.23
0.64
8.80
Maximum DC
0.23
0.65
Maximum DC (peak)
0.79
2.13
Peak operating current (random write 4K16Q)
Typical DC
0.25
0.66
9.10
Maximum DC
0.25
0.66
Maximum DC (peak)
0.51
2.46
Peak operating current (sequential read 64K16Q)
Typical DC
0.54
0.60
9.84
Maximum DC
0.54
0.60
Maximum DC (peak)
0.86
1.02
Peak operating current (sequential write 64K16Q)
Typical DC
0.45
0.62
9.72
Maximum DC
0.46
0.62
Maximum DC (peak)
0.57
1.03
