I'm using this in my Dell Inspiron 6400 to record my vinyl collection with Roxio's Easy CD 5 software.
I had used a previous Creative laptop sound card model in my old Dell Inspiron 6000, but the 6400 needs an Express card, hence the purchase. Works fine and comes with a lot of software that, if you haven't already got an equivalent, is a bonus. Slightly neater / smaller styling than the last one.
If you need a laptop sound card, this is the one to buy.