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Seagate Enterprise Capacity 2.5 HDD v3 SAS Product Manual, Rev. D 27
6.4 Power dissipation
2TB models in 12Gb operation
Typical power dissipation under idle conditions in 12Gb operation is 5.478 watts 18.69 BTUs per hour).
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 4). Locate the typical I/O rate for a
drive in the system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To
calculate BTUs per hour, multiply watts by 3.4123.
Figure 3. 2TB (at 12Gb) DC current and power vs. input/output operations per second
1TB models in 12Gb operation
Typical power dissipation under idle conditions in 12Gb operation is 5.240 watts 17.88 BTUs per hour).
To obtain operating power for typical random read operations, refer to the following I/O rate curve (see Figure 4). Locate the typical I/O rate for a
drive in the system on the horizontal axis and read the corresponding +5 volt current, +12 volt current, and total watts on the vertical axis. To
calculate BTUs per hour, multiply watts by 3.4123.
Figure 4. 1TB (at 12Gb) DC current and power vs. input/output operations per second