HP ProBook 5220m Notebook PC - Manual (Page 91)

Using an eSATA device
NOTE: The eSATA port also supports an optional USB device.
An eSATA port connects an optional high-performance eSATA component, such as an eSATA external
hard drive.
Some eSATA devices may require additional support software, which is usually included with the device.
For more information about device-specific software, refer to the manufacturer's instructions.
Connecting an eSATA device
CAUTION: To prevent damage to an eSATA port connector, use minimal force to connect an eSATA
device.
▲ To connect an eSATA device to the computer, connect the eSATA cable for the device to the
eSATA port.
You will hear a sound when the device has been detected.
Using an eSATA device 79