HP Thunderbolt Dock 120W G4 (4J0A2AA) – Secure USB-C Docking Station with Multi‑Display Support

Overview

The HP Thunderbolt Dock 120W G4 (4J0A2AA) Port Replicator creates a ready-to-work hub the moment you log in. With a single USB‑C connection, you can expand your laptop’s capabilities while keeping cables organized and unobtrusive on a busy desk. The slim profile and adjustable stand help you find a comfortable setup, whether you’re drafting documents, presenting, or collaborating with teammates.

Security and protection by design

Security is built into the core experience. HP Sure Start helps guard against docking-based threats, and the dock meets full NIST 800-193 requirements, giving you a solid baseline for protecting the connected notebook and the network. This means your workspace can stay focused on work, with fewer interruptions from security worries as you log in and start your day.

Compatibility and ease of use

Expanded compatibility means you can rely on a dock that works across Windows, Mac, and Chrome OS. Rigorous testing and certifications help ensure a smooth, plug‑and‑play experience with most notebooks. A single USB‑C cable handles the core connections, so you can quickly connect your peripherals without wrestling with multiple adapters.

• Single‑cable connection for conveniently expanding your laptop’s connectivity options
• Four USB 3.0 ports with fast‑charge support for quickly powering portable devices
• Slim design is ideal for ultraportable laptops
• Adjustable stand props up your laptop for better viewing angles and improved airflow
• Kensington Lock slot for physical device protection

Power, performance, and multi‑display capability

Powered by Thunderbolt 4, this dock supports up to four 4K displays, enabling expansive, detailed workspaces for multitasking, design, and data analysis. It can deliver up to 100W of power, which is enough to charge most notebooks while you work, helping you stay productive without swapping power adapters. In addition, the dock offers faster network performance with improved ethernet throughput, making downloads, file transfers, and streaming feel smoother during peak hours.

What you gain in daily use

Designed to streamline meetings, project work, and collaborative sessions, the dock creates a flexible, tidy workstation. The compact form fits snugly under or beside laptops, and the combination of security, compatibility, and power delivery supports a wide range of workflows—from quick document edits to immersive multi‑screen dashboards. While results will vary by device and configuration, many users may notice a more efficient, organized workstation and a quicker setup when connecting a full peripheral suite.

• Up to four 4K displays via Thunderbolt 4 for rich, scalable views
• Up to 100W power delivery to keep notebooks charged during a busy work session
• Double ethernet speed for faster downloads and stable streaming
• Broad OS compatibility across Windows, Mac, and Chrome OS
• Easy, single‑cable connectivity with secure physical protection