Smoother visual experience A 120Hz refresh rate delivers less flicker, more seamless scrolling and smoother motion than 60Hz monitors. Ambient Light Sensor A built-in Ambient Light Sensor intelligently optimises brightness and colour temperature based on your surroundings. World's first 40" 5K monitor certified for 5-Star Eye Comfort Every aspect of your work springs to life on this curved 5K monitor featuring a 120Hz refresh rate. You'll never miss a single detail. Improved ComfortView Plus Our latest monitors reduce harmful blue light emissions to 35%, compared to 50% from the previous generation, for all-day eye comfort without sacrificing colour accuracy. See more detail than ever before 5K See every detail with complete clarity on a 5K resolution monitor. 99% DCI-P3 and Display P3 colour coverage. IPS Black Experience deeper blacks with a 2000:1 contrast ratio. Internal Multi-Stream Transport (iMST) Partition your display as if there were two 2560x2160 physical monitors instead of one. No external software or DisplayPort splitter needed. Thunderbolt 4 Power your devices with a single cable connection with up to 140W power delivery. Stay online Connect to the Ethernet with a built-in RJ45 port with up to 2.5GbE. Dell Display Manager Multitasking Organise your screen with Easy Arrange and save profiles with Easy Arrange Memory. Network KVM Control and work across multiple network connected PCs and monitors with a single keyboard and mouse, and easily transfer files between them. Customisation Quickly access your favourite features and functions with the menu launcher and hot keys. Manageability Manage your fleet of monitors with remote management features that are automatic, comprehensive and compatible with several tools. Dell Colour Management Customisable colours Easily calibrate your monitors colours on the new Dell Colour Management software, with Calman Verified certification. Tailored to you Create, store, and manage ICC profiles on your computer dynamically through the software dashboard. Wide compatibility Dell Colour Management software is compatible with multiple operating systems including Windows and macOS. Environmentally-forward thinking Sustainable materials This monitor is made with 50% recycled steel, 85% post-consumer recycled plastics including closed-loop plastics, 100% recycled aluminium and at least 20% recycled glass. Energy conservation Using PowerNap mode in Dell Display Manager lowers energy use by up to 14.8%. Packaging innovation Ships in a box made with 100% renewable content that is also recyclable. Elevated standards Meets highest environmental standards and registered EPEAT Gold with Climate+ designation - this monitor has met industry best practices for decarbonisation. Extensive connectivity Connect all your devices with over a dozen ports, including pop-out quick access ports. Elevate your performance with a 40-inch curved Thunderbolt hub monitor featuring a stunning 5K display and a 120Hz refresh rate.