A:
If you choose to vent the MC17F808KDT to the outside, either through the top or the rear of the microwave, you'll need to purchase the duct and other parts separately. What pieces you'll need will depend on the type of ducts you choose. Please refer to the Installation Guide that comes with the unit for details. This information can also be viewed as a how-to guide on Samsung's website.
If you aren't familiar with this type of installation, it may be helpful to have an experienced technician install it for you. Please call 888-BEST BUY or contact your local Best Buy Appliance Team for more information on installation packages.
Thanks for your interest!
Ms. Samsung