1. Introduction
The HP Thunderbolt Dock G2 is a versatile docking solution designed to enhance productivity and workspace flexibility. It provides extensive connectivity options for both HP and non-HP Thunderbolt and USB-C notebooks, enabling access to wired networks, data transfer, video output, and charging through a single cable connection.
This manual provides detailed instructions for setting up, operating, maintaining, and troubleshooting your HP Thunderbolt Dock G2.
2. Package Contents
Verify that all items are present in the package:
- HP Thunderbolt Dock G2 with Combo Cable
- Documentation (this manual)
3. Product Overview
The HP Thunderbolt Dock G2 features a compact, black, rounded design with various ports for comprehensive connectivity.
3.1. Front View

Image: Front view of the HP Thunderbolt Dock G2, highlighting the HP logo and the front-facing USB-C port.
- 1 USB-C port with data and power out (15W)
- 1 USB-C cable to connect to host system (0.7 meter cable length)
3.2. Side View

Image: Side view of the HP Thunderbolt Dock G2, displaying a powered USB 3.0 port, a combo audio jack, and a Kensington lock slot.
- 1 Powered USB 3.0 port
- 1 Combo Audio Jack
- 1 Kensington lock slot
3.3. Rear View

Image: Rear view of the HP Thunderbolt Dock G2, illustrating the array of connectivity options including Thunderbolt, USB-C DisplayPort, DisplayPort, VGA, USB 3.0, RJ45, and AC adapter connector.
- 1 Thunderbolt port
- 1 USB-C DisplayPort data and power out (15W) port
- 2 DisplayPort ports
- 1 VGA port
- 2 USB 3.0 Ports
- 1 RJ45 port (Ethernet)
- 1 AC adapter connector
3.4. Combo Cable

Image: The unique combo cable for the HP Thunderbolt Dock G2, featuring integrated Thunderbolt 3 (USB-C) and power connectors for a streamlined connection to your laptop.
The included combo cable simplifies connectivity by combining the Thunderbolt 3 (USB-C) data and power connection into a single cable for your host system.
4. Setup Instructions
- Connect Power: Plug the AC adapter into the dock's AC adapter connector on the rear panel, then connect the adapter to a power outlet.
- Connect to Host System: Connect the integrated combo cable from the dock to the Thunderbolt 3 (USB-C) port on your laptop. This single connection provides data, video, and charging.
- Connect Displays:
- For dual 4K displays, connect your monitors to the DisplayPort or USB-C DisplayPort ports on the rear of the dock.
- For triple monitor setups, utilize a combination of DisplayPort, VGA, and the Thunderbolt port with appropriate adapters if needed. Refer to your laptop's specifications for maximum display support.
- Connect Peripherals: Plug your USB devices (keyboard, mouse, external drives) into the available USB 3.0 ports on the side and rear, and the USB-C port on the front. Connect an Ethernet cable to the RJ45 port for a wired network connection.
- Audio Connection: If using external speakers or headphones, connect them to the combo audio jack on the side of the dock. Note: For integrated audio functionality, an HP TB Dock Audio Module (sold separately) is required.
5. Operating Instructions
Once connected, your laptop should automatically detect the dock and connected peripherals. If not, ensure your laptop's drivers are up to date.
- Power Button: The power button on the top of the dock can be used to power on/off or wake/sleep your HP laptop. This feature may not be supported on non-HP systems.
- Charging: The dock provides power delivery to your connected laptop via the combo cable. The front USB-C port and side Powered USB 3.0 port also offer power output for charging devices.
- Network Management: For HP enterprise systems, the dock supports advanced network manageability features such as Wake on LAN (WoL) and MAC Address Pass-Through in all power states, and PXE Boot.
6. Maintenance
To ensure optimal performance and longevity of your HP Thunderbolt Dock G2, follow these maintenance guidelines:
- Cleaning: Use a soft, dry cloth to clean the exterior of the dock. Avoid using liquid cleaners or abrasive materials.
- Ventilation: Ensure the ventilation grilles are not obstructed to prevent overheating.
- Cable Management: Keep cables organized and free from kinks or excessive bending to prevent damage.
- Storage: When not in use for extended periods, store the dock in a cool, dry place.
7. Troubleshooting
If you encounter issues with your HP Thunderbolt Dock G2, try the following steps:
- No Power:
- Verify the AC adapter is securely connected to the dock and a working power outlet.
- Ensure the combo cable is firmly connected to your laptop.
- Display Issues:
- Check all display cable connections between the dock and monitors.
- Ensure your laptop's display drivers are updated.
- Confirm your laptop supports the desired display configuration (resolution and number of monitors).
- Try restarting your laptop and the dock.
- USB Device Not Recognized:
- Try connecting the USB device to a different port on the dock or directly to your laptop to isolate the issue.
- Ensure the device has necessary drivers installed on your laptop.
- Network Connectivity Problems:
- Check the Ethernet cable connection to the dock and your network router/switch.
- Verify network settings on your laptop.
For further assistance, refer to the official HP support website or contact HP customer service.
8. Specifications
| Feature | Detail |
|---|---|
| Brand | HP |
| Model Number | 3TR87UT#ABA |
| Series | Docking Station |
| Dimensions (LxWxH) | 3.9 x 2.7 x 3.9 inches |
| Weight | 1.8 pounds |
| Color | Black |
| Power Source | AC |
| Wattage | 230 watts |
| Front Ports | 1 USB-C (data/15W power out), 1 USB-C host cable (0.7m) |
| Side Ports | 1 Powered USB 3.0, 1 Combo Audio Jack, 1 Kensington lock slot |
| Rear Ports | 1 Thunderbolt, 1 USB-C DisplayPort (data/15W power out), 2 DisplayPort, 1 VGA, 2 USB 3.0, 1 RJ45, 1 AC adapter connector |
| Hardware Interface | Ethernet, USB |
| Compatible Devices | HP Elite x2 1012 G1/G2, HP Pro x2 612 G2, HP EliteBook Folio G1, HP EliteBook x360 1030 G2, HP EliteBook x360 1020 G2, HP EliteBook 1040 G4, HP EliteBook 800 G5, HP EliteBook 700 G5, HP ProBook 600 G4, HP ProBook 400 G5, ZBook 14u G5, ZBook 15u G5, HP ZBook 17 G3, HP ZBook 15 G3, HP ZBook 17 G4, HP ZBook 15 G4 |
9. Warranty and Support
This product comes with a standard manufacturer's warranty. For specific warranty terms and conditions, please refer to the documentation included with your product or visit the official HP support website.
For technical support, driver downloads, and additional resources, please visit: hp.com/support