HP

HP Thunderbolt Dock 280W G4 - Combo Cable Docking Station

4.4 (94 reviews)
4K3840 x 2160280WThunderbolt 4USB-C

One Thunderbolt 4 cable delivers 280W laptop charging, triple 4K display output, and 2.5Gb Ethernet — replacing your entire desk cable nest.

$433.40*
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*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The HP Thunderbolt Dock 280W G4 is a single-cable docking solution built on the Thunderbolt 4 standard, which specifies a guaranteed 40Gbps bidirectional bus — double the minimum bandwidth of USB4. In practice, that bandwidth allocation means you can drive two DisplayPort 1.4 displays and one HDMI 2.0 display simultaneously at 4K@60Hz each, while maintaining 2.5Gb wired Ethernet throughput and USB 3.x peripheral speeds, all without the bus becoming a bottleneck. The 280W power supply is the headline number here: it's large enough to run the dock, charge a workstation-class notebook at its full PD rate (up to ~140W negotiated), and still leave headroom for USB-powered peripherals — something that 100W or 130W Thunderbolt docks simply can't do for high-draw systems under sustained CPU and GPU load.

This dock is engineered for professionals whose laptops are the center of a stationary multi-display workstation — engineers, video editors, or power users who want a single-cable dock/undock workflow without sacrificing peripheral bandwidth. The included vPro management compatibility (Windows) adds value in enterprise IT environments where remote management of docked endpoints is a requirement. For creative workflows, the triple-display capability combined with USB-C DP Alt Mode on one of the downstream ports expands the peripheral connection topology. At 3.9 inches square, the G4 has a compact vertical footprint that suits under-desk placement, though the fixed combo cable means stand placement relative to the laptop matters more than with user-swappable cable designs.

Key Features

Connectivity Technology: Wired. Supported Resolutions: 3840 x 2160. Screen Mode Supported: 4K. Device Supported: Notebook/Desktop PC. Ethernet Technology: Gigabit Ethernet

Host Interface: Thunderbolt 4. Total Number of USB Ports: 5. USB Type-C: Yes. USB Type-C Detail: USB-C DP Alt Mode Port. Number of RJ-45 Ports: 1. Network (RJ-45): Yes. Number of DisplayPorts: 2. DisplayPort Version: 1.4. Number of HDMI Ports: 1. HDMI Version: 2.0

The Power To Be Productive. Expanded Compatibility. Easy Connectivity. The Dock that Protects your Connected Devices

Device Management Made Easy. Minimum system requirements: Wired vPRO Management

What's in the box: Dock, power supply, power cord, warranty, With Dockztorm Hub

Specifications

Host Interface
Thunderbolt 4
Total USB Ports
5 (including USB-C DP Alt Mode)
DisplayPort Outputs
2 × DisplayPort 1.4
HDMI Output
1 × HDMI 2.0
Ethernet
1 × RJ-45 (1Gb / 2.5Gb)
Max Supported Resolution
3840 × 2160 (4K)
Power Delivery
280W total
OS Compatibility
Windows 11, Windows 10, macOS, ChromeOS
Dimensions
3.9 × 3.9 × 2.7 inches
Weight
1.68 lbs
In the Box
Dock, power supply, power cord, combo cable, warranty card, Dockztorm Hub

Pros & Cons

👍 Pros

  • Thunderbolt 4 host interface delivers full 40Gbps bidirectional bandwidth — enough to saturate dual 4K displays and a 2.5GbE connection simultaneously without throttling.
  • 280W total power budget provides sufficient headroom to charge workstation-class laptops at full speed while powering downstream peripherals.
  • Dual DisplayPort 1.4 plus HDMI 2.0 enables a true triple-monitor configuration from a single cable connection.
  • 2.5Gb Ethernet auto-negotiation offers a measurable wired throughput advantage over standard Gigabit docks on compatible networks.
  • Combo cable design reduces desk cable management to a single connection point between laptop and dock.

👎 Cons

  • The combo cable is fixed to the dock — if it's damaged, replacement options are limited and you can't simply swap to a different cable length.
  • HDMI port is version 2.0, not 2.1, which caps the third display at 4K@60Hz with no support for 4K@120Hz or 8K output.
  • Full triple-display and maximum bandwidth performance is gated entirely on the host having a Thunderbolt 4 port — the dock offers no fallback multi-display path for USB-C-only systems.
  • At 1.68 lbs and a 3.9 x 3.9 x 2.7-inch footprint, this is a desktop dock, not something you'll slip into a laptop bag for mobile use.

Frequently Asked Questions

Thunderbolt 4 is required on the host to get full 40Gbps bandwidth and all three display outputs simultaneously. A USB-C only connection will work for basic charging and some data transfer, but display and bandwidth capabilities are significantly degraded — you won't get triple-monitor output without TB4.
The G4 supports up to three external displays: two via DisplayPort 1.4 and one via HDMI 2.0. Each can run 3840x2160 (4K). DisplayPort 1.4's HBR3 bandwidth supports 4K@60Hz per port; HDMI 2.0 also handles 4K@60Hz. All three simultaneously requires the host to support Thunderbolt 4 multi-stream transport.
280W is the dock's total power budget from the included supply. Actual power delivery to the laptop depends on the host's negotiated PD contract. High-performance laptops like the HP ZBook or OMEN can pull up to 140W over TB4; the remainder powers downstream devices. This headroom makes the G4 suitable for workstation-class notebooks where 65W or 100W docks fall short under load.
Both. The single RJ-45 port auto-negotiates at 1Gb or 2.5Gb depending on your network switch. If you're on a modern router or switch with 2.5GbE ports, you'll see a real throughput improvement for large file transfers over the wire compared to standard Gigabit.
macOS is officially listed as compatible. However, vPro device management features are Windows-only (requires Intel vPro platform). Full display and charging functionality works on macOS; ChromeOS is also supported.