The HP Thunderbolt Dock 120W G4 (4J0A2AA) Port Replicator connects and protects your devices and network the moment employees log on and supports multi-OS compatibility and up to four 4K displays. The Dock that Protects your Connected Devices: Feel safe and secure from the moment you log in. The HP Thunderbolt G4 Dock with HP Sure Start prevents hackers from using the dock to attack the network and the attached notebook. Everything connected to this dock is protected and meets full NIST 800-193 requirements. Expanded Compatibility. Easy Connectivity: Focus on your work and not your compatibility with a dock that works seamlessly with most notebooks and operating systems. Whether you use Windows, Mac, or Chrome OS - rigorous testing and certifications ensure that one USB-C cable connects your device and peripherals without issue. The Power To Be Productive: Multitask, create, and collaborate faster with a dock that supports up to four 4K displays through superfast Thunderbolt 4 technology, and has double the ethernet speed for faster downloads. This dock also delivers up to 100W of power - enough to charge most notebooks.