Can you change T400 wireless network card??

I am eyeing a used T400 but it comes with an older a/g wireless card- Can I replace it with a newer draft-N pci-mini card internally?  Will it integrate well? Any particular brand to use?

@ortegaluis,
Thanks.  The question remains (in my little pea-brain anyway) is the card white-listed by MFGR and model, or does it have to be from Lenovo?  That is, can I install an Intel 5100 from the local store, or do I have to order from big L?
@wp746911.
Apologies for hijacking your thread.  I may be mis-reading it (wouldn't be the first time) but it would be too bad if you bought a card you couldn't use.  BTW, I have swapped Intel 5100s and 5300s (from Lenovo) in and out of my T400 and it isn't that big a deal.  Just read the manual and take your time
Z.
The large print: please read the Community Participation Rules before posting. Include as much information as possible: model, machine type, operating system, and a descriptive subject line. Do not include personal information: serial number, telephone number, email address, etc.  The fine print: I do not work for, nor do I speak for Lenovo. Unsolicited private messages will be ignored. ... GeezBlog
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