Seagate Exos 7E8 SATA Product Manual, Rev. B (Draft 2)
9
2.5
Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 4 on page 21.
2.5.1
Power consumption
Power requirements for the drives are listed in Table 2 through Table 3. 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 (3TB and 4TB)
6.0Gb mode
Voltage
+5V
+12V
Watts
Regulation
± 5%
Total
Avg Idle Current *
0.205
0.369
5.45
Advanced Idle Current *
Idle_A
0.200
0.366
5.39
Idle_B
0.133
0.330
4.63
Idle_C
0.141
0.202
3.13
Standby
0.125
0.001
0.63
Maximum Start Current
DC (peak DC)
0.491
2.095
AC (Peak DC)
0.680
2.680
Delayed Motor Start (DC max)
0.176
0.068
1.70
Operating current (random read): 4K/Q16
Typical DC
0.234
0.724
9.86
Maximum DC
0.238
0.734
10.00
Operating current (random write): 4K/Q16
Typical DC
0.245
0.692
9.52
Maximum DC
0.248
0.701
9.65
Operating current (sequential read): 64K/Q16
Typical DC
0.505
0.402
7.35
Maximum DC
0.512
0.407
7.45
Operating current (sequential write): 64K/Q16
Typical DC
0.443
0.427
7.33
Maximum DC
0.448
0.430
7.40