Impressive visuals. Impactful presentations. Exceptional viewing: Brilliant 4K resolution will keep audiences captivated, and consistent colors across a wide viewing angle allow everyone in the room to view clear text and crisp, vivid visuals. Optimal performance: Dell monitor technology optimizes fonts and ensures visuals appear sharp while operating everyday programs like Microsoft PowerPoint, Word and Excel. Consistent clarity: Anti-glare and anti-smudge coatings reduce distracting reflections and fingerprints. Great for groups: The impressive 55-inch touch screen is ideal for conference room settings of up to 8 people. Just the right touch. Constructive collaboration: Featuring up to 20 touch points with innovative InGlass Technology, multiple people can interact with the screen simultaneously via touch or styluses with 2mm pen tips, making group collaboration intuitive and seamless.Smooth interaction: Two included styluses allow you to write or draw naturally in real time directly on the screen without any lagging, while the included remote allows added functionality.User-friendly functionality: Pen and finger differentiation makes it easy to switch between touch and pen-based interaction, and touch functionality is supported on virtually all industry-standard software.Interactive software (included): DisplayNote - industry-leading software for collaborative classroom technology - allows presenters to share their computer screen with the C5518QT, while other users can take screen shots, make notes and save content on their own device. Simple setup and management.Convenient connectivity: A variety of ports - including HDMI, VGA, DisplayPort and USB - makes it easy to connect to most IT devices.OptiPlex compatibility: The Dell 55 4K Interactive Touch Monitor features a unique design that’s compatible with the optional Dell OptiPlex Micro, which integrates seamlessly into the back panel without the need of a separate power cord.Connect wirelessly: The optional Dell Wireless Module | WR517 enables secure, reliable wireless activity.Easy manageability: The Dell Display Manager allows users to easily organize screen layouts. RS232 and RJ45 interfaces allow you to manage the display remotely.