Many comments are inaccurate. It is not the responsibility of supply (me) to provide ANYONE, regardless of rank, with items for personal usage. PFC Mullins stated as much in his initial posting that it's for his personal laptop. It is incumbent on each individual to purchase personal items themselves. I agree with coming onto a site like this for information on making a purchase but we should not be suggesting an illegal activity, even though it may have been an inadvertent suggestion.
Like MAJ Weiss suggested, the SCMs are great CAC Readers. If you would like a very nice portable one, check out the one below. It folds up nice and neatly into about the size of a thumb drive. I have one and carry it with me. These cost $17.99 but well worth it.
I have never been in a unit that would issue you a CAC reader for your personal use on your computer. There are somethings you have to do to stay on top of your job and going out and spending some money on a CAC reader is probably one of them. I pretty sure that it is not legal for supply to give you a CAC reader for your home computer. They come pretty cheap, and probably less than a case of beer.
I know when I was still a 1SG there is no way I would have my supply sergeant buy CAC readers to issue out to Soldiers, go to the PX and get one, they all sell them.
SSG Deiler, I guess that depends on which VPN you are using. I connect daily via wireless and a VPN, on an issued laptop.
The key is ensuring your issued laptop is wireless enabled. Many are disabled for many reasons.
Option 2: Buy a $30 software from Thursby. They also provide technical support: http://www.thursby.com/products/pkard-mac
I started with option 1 but had to buy the option 2 software as well.
Please note that you can use your CAC on a Mac, but you still cannot sign documents.
MilitaryCAC's Mac OS X support landing page
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HTTPS://militarycac.com
It will show you how to download all certificates and the downloadable software needed to operate your CAC reader. Look for the one that says Apple.

CAC
Supply
