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6.3 DC power requirements
Damage to the drive electronics may result if the power supply cable is connected or disconnected to the legacy
Power connector while power is being applied to the drive (no hot plug/unplug is allowed). If SATA power supply
cable is connected or disconnected to the SATA power connector, hot plug/unplug is allowed.
Table values for current and power are considered ‘typical’ values. Typical is defined as observed average or
observed maximum in a sample of 6 drives per model under voltage conditions of 5.0V and 12.0V at the drive
reported temperatures as noted.
6.3.1 Input voltage
Table 11 Input voltage
Absolute max
Input voltage
During run and
spin up
spike voltage
Supply rise time
+5 Volts Supply
5V ± 5%
–0.3 to 5.5V
0 to 200ms
+12 Volts Supply
12V ± 5%
–0.3 to 15.0V
0 to 400ms
Caution: To avoid damage to the drive electronics, power supply voltage spikes must not exceed specifications.
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Hard Disk Drive Specification