Seagate ST3300657SS - Cheetah 300 GB Hard Drive Product Manual page 33

Cheetah 15k.7 sas product manual

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ST3450857SS

Typical power dissipation under idle conditions in 6Gb operation is 9.97 watts (34.02 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 your 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 5.

ST3450857SS DC current and power vs. input/output operations per second

Cheetah 15K.7 SAS Product Manual, Rev. B

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