Laptop internal adapter card compatibility

Hi all,

I wanted to know about laptop internal card compatibility. It looks to me like there is a half size and a full size but I am wondering if it is as simple as that because I also see (in Ebay) very specific text about what pc's the cards are compatible with. Is there anyway that I can tell if a full sized wireless adapter will work on my Gateway Mxxxxx?

The card I have now is:
Intel PRO/Wireless 3945ABG Network Connection

Thanks,
Jim Lee

 

What I can find on this it is a mini-PCI-express card.
Are you having a problem with it?

 

FWIW, USB wireless adapters, (with WPA2), start at less than $10, including shipping.
http://www.newegg.com/Product/Produ...pter usb wpa2&bop=And&Order=PRICE&PageSize=20

 

Nope. Just thinking about upgrading to the N standard. I got a min usb "N" and it is getting returned to sender. It slows my downloads down to a crawl.

 

The one I'm using right now is:

Rosewill RNX-MiniN1 (RWLD-110001) Wireless-N 2.0 Dongle (1T1R) IEEE 802.11b/g/n, USB2.0 Up to 150Mbps Data Rates, WEP 64/128, WPA/WPA2, and IEEE 802.1x
$9.99 (including shipping)
http://www.newegg.com/Product/Product.aspx?Item=N82E16833166052

Works great.