Does this Mini PC support dual monitor setup, and if so, what ports are available for connecting displays?

Yes, this Mini PC supports dual displays using HDMI and VGA.

Does the Mini PC come with Windows 10 Pro pre-installed, or do I need to install it myself?

Yes, the Mini PC comes with Windows 10 Pro pre-installed.

Questions & Answers: Mini PC Windows 10 Pro, AWOW 6GB RAM 64GB Storage Mini Desktop Computers Intel N3350 Processor(Up to 2.4GHz), Micro Computer Support M.2 SATA SSD, 2.4G/5G WiFi and Bluetooth 4.2

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Mini PC Windows 10 Pro, AWOW 6GB RAM 64GB Storage Mini Desktop Computers Intel N3350 Processor(Up to 2.4GHz), Micro Computer Support M.2 SATA SSD, 2.4G/5G WiFi and Bluetooth 4.2

[(The First Choice for Entry-Level PC)] This micro pc has dual cores Celeron N3350 processor(up to 2.4GHz), is pre-installed with Windows 10 Pro(64bit), and supports Ubuntu& Linux as well. It's a great mini computer for office working, security and surveillance, conference room, etc.
[(BT 4.2 and 2.4G/5.8G WIFI)] AWOW Mini pc windows 10 pro equipped with 5.8G+2.4G Dual Band WiFi & Bluetooth BT 4.2, very convenient to connect to other devices. With a 3.5mm earphone combo with a microphone, the Mini PC will give you an auditory feast. It supports Auto Power On, RTC, 7/24 running. Support up to 2 displays using HDMI and VGA, dual displays, more productivity.
[(More Energy Efficient & Efficient Heat Dissipation)] This mini desktop draws under 4 watts of power, the smart fan design in the thin and light body to make the heat dissipation more efficient, create a more efficient and energy-saving work environment.
[(Large Expandable Storage)] 6GB RAM+64GB Storage small computer supports

$260^.84 –