Seagate IronWolf Pro v4 Serial ATA Product Manual, Rev. C 9
2.5 Power specifications
The drive receives DC power (+5V or +12V) through a native SATA power connector. See Figure 3 on page 24.
2.5.1 Power consumption
Power requirements for the drives are listed in Table 2. 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
6.0Gb mode
Voltage +5V +12V Watts
Regulation ± 5% ± 10% Total
Avg Idle Current * 0.275 0.312 5.12
Advanced Idle Current *
Idle_A 0.276 0.311 5.11
Idle_B 0.182 0.208 3.40
Idle_C 0.182 0.144 2.63
Standby 0.174 0.015 1.05
Maximum Start Current
DC (peak DC) 0.770 1.931
AC (Peak DC) 0.832 3.440
Delayed Motor Start (DC max) N/A N/A
Operating current (random read 4K16Q):
Typical DC 0.338 0.649 9.48
Maximum DC 0.344 0.662 9.66
Maximum DC (peak) 1.144 2.319
Operating current (random write 4K16Q)
Typical DC 0.364 0.376 6.33
Maximum DC 0.367 0.381 6.40
Maximum DC (peak) 0.833 2.213
Operating current (sequential read 64K16Q)
Typical DC 0.823 0.330 8.08
Maximum DC 0.845 0.339 8.30
Maximum DC (peak) 1.135 0.704
Operating current (sequential write 64K16Q)
Typical DC 0.741 0.329 7.66
Maximum DC 0.760 0.338 7.85
Maximum DC (peak) 0.921 1.779
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