Expand two external Power Over eSATA port from your internal SATA host.
2 external USB port from USB 9pin port (must connect 9pin with motherboard 9pin connector).
You can connect your 2.5" or 3.5" HDD without extra power needed.(the power over eSATA cable used must be power eSATA 12V+5V)
No driver needed.
NOTICE: Power eSATA is eSATA + USB combo,but it is oNOT normal eSATA or USB port.