I am having troubles installing this and using with my UBBThreads 7.5.8. Can someone assist?

Apple II Kay Computer Card - For Apple II For Sale by UBBCentral.com

Other stuff recommended by UBBCentral.com - https://www.ubbcentral.com/store/
The way it is presented, it also appears to be sold by UBBCentral.com - except its not.
Is UBBCentral.com also Link Farm?

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