Inspiron 7640 2-in-1

Dell Pro Thunderbolt 4 Smart Dock SD25TB4 and Dell Pro Thunderbolt 4 Dock WD25TB4 are high-end Thunderbolt 4 docking stations designed for professional and enterprise users. They support extreme multi-display configurations up to 8K with Display Stream Compression, dual Thunderbolt 4 ports, and deliver up to 130W power to Dell commercial notebooks through a single Thunderbolt connection.

Dell WD22TB4 is a Thunderbolt 4 docking station designed for professional and enterprise users. It supports advanced multi-display configurations with DisplayPort 1.4 and HDMI 2.1, provides comprehensive USB expansion, Gigabit Ethernet, and delivers up to 130W power to Dell commercial notebooks through a single Thunderbolt 4 connection.

The Dell Universal Dock UD22 is a USB-C universal docking station designed for maximum cross-platform compatibility. Unlike Thunderbolt docks, UD22 works with almost any USB-C laptop (Windows, macOS, ChromeOS, Linux) that supports DisplayPort Alt Mode. Its key advantage is broad compatibility, while multi-monitor capability depends on whether DisplayLink drivers are installed on the host system.

Dell Dual Charge Dock HD22Q is a USB-C docking station that combines desktop connectivity expansion with built-in Qi wireless charging for smartphones and other devices. It delivers up to 90W USB-C Power Delivery to laptops, supports dual displays via DisplayPort 1.4 and HDMI 2.1, and provides a full complement of USB-A, USB-C, and Gigabit Ethernet interfaces in a compact form factor.