You’ll also want to consider using a PC keyboard on a Mac when your MacBook Pro or Air keys aren’t functioning correctly. A Windows keyboard on a Mac provides a viable alternative to help you stay productive. Most retailers stock limited supplies of this product, so even authorized retailers might not have what you need. Unless you live near an Apple Store, a local Best Buy, or another retailer authorized to sell new Magic Keyboards, it could be 7-10 business days before you receive a replacement. Apple keyboards are a specialty product for most users.