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T E C H N I C A L W H I T E PA P E R
CONTENTS &
NAVIGATION
2
HP Thunderbolt Dock G4 specifications summary
HP Thunderbolt G4 Dock, The Dock That
Does It All
3-4
First-time Connection
5-6
Supported Modes (Multi-Function
and Thunderbolt
4/USB4/Thunderbolt
TM
TM
Pre-Boot Support
LED/Power Button
6-9
Charging Support from the Dock
Display Capabilities
9-10
HP Sure Start for Docks
Thunderbolt
Security Levels – Available Functions
TM
and Ports
10-12
Manageability
13-14
Troubleshooting Issues
15-19
Support list for the HP Thunderbolt 4 Dock
HP Commercial Notebook / mWS Platform Support
5.
S U P P O R T E D M O D E S ( M U LT I - F U N C T I O N
A N D T H U N D E R B O LT
The HP Thunderbolt Dock G4 can connect to systems without Thunderbolt
Depending on the host capabilities, then the dock will connect as follows:
- If the Host has Thunderbolt
- If the host has only USB4 capabilities, then the dock will connect as a USB4 dock.
- If the host does not have Thunderbolt
(Multifunction mode)
Connect through the Thunderbolt
below a comparison when connecting a HP Thunderbolt Dock G4 to a hosts:
Overall port Bandwidth
Maximum PCIe Bandwidth
Maximum USB Bandwidth
Max DP Bandwidth
NIC
Intel vPro® support*
3)
Table 1: Comparisons between different Host Capabilities.
* Feature support is only applicable for notebooks that support Intel vPro® technology.
There are three main differences between Thunderbolt
• The Thunderbolt
• The Thunderbolt
• The number of independent video streams is decreased from two DP x4 to one DP x2.
P R E - B O O T S U P P O R T
The HP Thunderbolt Dock G4 supports pre-OS environment only in Thunderbolt
(please reference the Security Levels – Available Functions and Ports section of this document for more details about
the Thunderbolt
Security level settings).
TM
Supported Features:
• USB peripherals such as keyboards, mouse, and flash drives connected to the docking station
• Pre-boot Execution Environment (PXE)
• External displays (the internal panel must be closed for external panels to function at pre-boot)
For any pre-boot support with the HP Thunderbolt dock G4 you will be required to disable FastBoot in F10 BIOS settings.
Disabling FastBoot in F10 BIOS:
1. Press the power button to turn on the unit
2. At the HP logo screen press F10 to enter the BIOS settings menu
3. Click the Advanced tab and select Boot Options
4. Unselect the FastBoot Option
5. Save and exit
*NOTE: Please ensure you are running the latest drivers, BIOS, and firmware to enable full functionality of all features.
L E D / P O W E R B U T T O N
On HP Commercial notebook systems the power button on the dock will simulate the power button on the host system.
Additionally, the LED on the dock power button will reflect the state of the host and will behave similarly to the power LED
of the host.
On non-HP notebooks, Apple, Chrome nor non-supported HP notebooks, the dock power button and power LED do not
control or reflect the status of the host.
4 / U S B 4 / T H U N D E R B O LT
T M
capabilities, then the dock will connect as a Thunderbolt
TM
or USB4 capabilities, then the dock will connect as a USB-C® dock
TM
cable to the host and the host capabilities will define the throughput speed of the dock,
TM
Thunderbolt™ 4
Thunderbolt™ 3 Host
or USB4 Host
40 Gb/s
40 Gb/s
PCIe 32 Gb/s
PCIe 16 Gb/s
USB 3.2 -10 Gb/s
USB 3.2 -10 Gb/s
2 DP Streams
2 DP Streams x 4 lanes
x 4 lanes
Intel®
Intel®
Yes (Intel®
No
Notebooks only)
mode of the HP Thunderbolt Dock G4 and multi-function mode.
TM
port on the back of the unit will degrade to USB2 only.
TM
port is only fully functional with a Thunderbolt
TM
through multi-function mode or USB4 mode.
TM
dock
TM
USB3/DP Host
USB3/DP Host with High
(Multi-function Mode)
Resolution mode
10 Gb/s
10 Gb/s
NA
NA
USB 3.2 -5 Gb/s
USB 2.0 480 mb/s
1 DP Stream x 2 lanes
1 DP Stream x 4 lanes
Realtek
Realtek
No
No
/ USB4 host connected.
TM
Security Level 0 and Security Level 1
TM
3 )
T M
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