Modular thunderbolt dock with swappable modules for easy upgrades and SuperBoost technologies for fast charging. You'll experience power delivery of up to 130W on Dell devices with ExpressCharge technology that enables: 80% charge in one hour; 35% charge in just 20 minutes. Future-made design: Swappable module lets you upgrade with ease to meet the needs of your IT environment. Upgrade to get the latest in connectivity with not one but two Thunderbolt 4 ports for even more flexibility. Multiply productivity: Connect displays and peripherals to your system with a single cable for ultimate productivity. Thunderbolt 4 dock with the highest number of ports connects multiple 4K displays and Thunderbolt peripherals allowing you to not compromise with your work setup. Get the maximum from your peripherals with data transfer of 40 GB/s. Industry standard compatibility: Dell Thunderbolt Dock - WD22TB4 offers wide compatibility across Dell Commercial laptops. It is also compatible with notebooks from other manufacturers which support industry standards for Thunderbolt docking. For functional limitations with notebooks from other manufactures in comparison to Dell Commercial notebooks, please see Dell's website.