If your laptop has an eSATA port, that's basically used to connect an eSATA device to it. The best example would be an external HDD that does eSATA.
On the other hand, if you're looking for eSATA connectivity, using your motherboard's SATA ports, something like this should help:
http://www.newegg.com/Product/Product.aspx?Item=N82E16812119021