gigabit ethernet performance on thinkpads and expresscard.

[thinkpadcollection]

Is the gigabit ethernet is very good on the thinkpads like T500 that I have and 2nd caddy for data storage. (thinking of setting it up as cheap NAS for data backup using Nasforfree open source.) Or get a gigabit ethernet expresscard if so, which one is best?

Cheers, thinkpadcollection

[precip9]

The built-in gigabit port is very good.