802.11n enabler?

i just got my macbook a week or so ago and i found this $2 enabler on the apple store. what exactly does it do? i have a wireless router but its G not N, but will enabling it make my macbook airport run faster?

So far as I know it's all down to the router, so probably not. If you do get an N router it would be worth enabling, or if it's a Time Capsule or (I think) Airport base it'll be on the disk that comes with it.

If you bought a brand new Macbook, then you don't need the enabler. That was for Macbooks sold at the end of 2006

oh ok thanks. i guess i dont need it then

Kash is correct. Also to use N your router has to support N. You will just get G speeds even though your new MacBook supports N.

you can tell if you need it or not by this:

"Do you need the AirPort Extreme 802.11n Enabler?
Before purchasing the 802.11n Enabler software, please check to make sure that your Mac does not already have the 802.11n enabler already installed.
Open Network Utility (found in the Applications > Utilities folder)
Under the Info Tab, choose Network Interface (en1)
In the section "Model: Wireless Network Adapter," if it says (802.11a/b/g/n), you already have the 802.11n enabler installed. If it says (802.11a/b/g), you do not have the 802.11n enabler installed."