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#11
Those are the various encryption types available on your router, each has their own pros and cons. If you will be the only user who connects the PC's to your router and use them for online banking etc. I would suggest the WPA2-PSK since most banks are moving to 128K encryption which. My Belkin uses this and a 12 character set of alpha numeric characters which you need to provide when getting any PC connected to the router the first go around as it will remember the PC connecting to it from then on and retain the characters in the configuration, your router generates the key and you supply it when your PC connects to the router the first time, hope this helps.