Video 3.5 HDD SATA Product Manual, Rev. A 15
www.seagate.com
Drive Specifications
• Read/write power and current
Read/write power is measured with the heads on track, based on a 16-sector write followed by a 32-ms delay,
then a 16-sector read followed by a 32-ms delay.
• Operating power and current
Operating power is measured using 40 percent random seeks, 40 percent read/write mode (1 write for each 10
reads) and 20 percent drive idle mode.
• Idle mode power
Idle mode power is measured with the drive up to speed, with servo electronics active and with the heads in a
random track location.
• Standby mode
During Standby mode, the drive accepts commands, but the drive is not spinning, and the servo and read/
write electronics are in power-down mode.
*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.
†5W IDLE with DIPLM Enabled
Table 2 DC power requirements (3TB and 4TB)
Power dissipation (4-disk values shown) Avg (watts 25° C) Avg 5V typ amps Avg 12V typ amps
Spinup — — 2.0
Idle* † 5.0 0.17 0.35
Operating 7.50 0.48 0.43
Standby 0.750 0.138 0.005
Sleep 0.750 0.138 0.005
