A:Answer Hi RichinTN,
We appreciate your question about the types of ventilation the microwave can be configured as well as the fan speeds.
The microwave can be configured to vent in 1 of 3 ways.
a. Outside top exhaust (vertical duct)
b. Recirculating (non-vented ductless)
c. Outside back exhaust (horizontal duct)
Please refer to pages 12 - 15 of the installation manual I have shared exhaust configuration.
https://downloadcenter.samsung.com/content/EM/202202/20220223181502042/Install_ME11A7510DS_AA_DE68-04709A-01_EN-MES_220120.pdf
The microwave has 4-speed types. They are Boost, High, Medium, and Low.
Should you need more assistance, please feel free to get back to us via the following options:
1. Facebook Messenger: http://m.me/samsungsupport
2. Twitter: https://twitter.com/messages/compose?recipient_id=18768513
3. Samsung Community: https://us.community.samsung.com/t5/Samsung-Community/ct-p/us
When you message us, provide them this number 1144919084 and it will help our team pull up your information.
Leo