Connect Your Dock.

ProBook 450 G6 docks: documented G5 and legacy G2 choices

HP names ProBook 450 G6 for USB-C Dock G5 and Thunderbolt Dock 120W G2, but its host and display limits still need to be kept below the dock headline.

Choose screen count and see dock options

Laptop · Reviewed 8 September 2026 · Documentation-based, not hands-on testing

Which dock options should you consider?

For HP ProBook 450 G6, consider HP USB-C Dock G5 first when rear HDMI and DisplayPort outputs fit the desk. HP's July 2020 table explicitly names this model. HP also lists ProBook 450 G6 for Thunderbolt Dock 120W G2 (2UK37AA) in its legacy Dock Solutions guide; treat that as a documented reuse option, not a reason to assume Thunderbolt performance or the 230 W combo-cable package. ProBook configurations use a 45 W or 65 W adapter, but the dock maximum still does not prove the actual negotiated charging rate.

HP USB-C Dock G5

HP's exact compatibility table names ProBook 450 G6 and the dock supplies rear HDMI plus two DisplayPort outputs with up to 100 W host power.

Check first: Start with one display. Higher combined modes depend on the host's DisplayPort capability and dock mode; the dock's three-output headline is not an exact-model guarantee.

HP Thunderbolt Dock 120W G2 / 2UK37AA

HP's September 2019 Dock Solutions guide includes ProBook 450 G6 for this exact legacy package.

Check first: Keep the 120 W package separate from 230 W and combo-cable variants. HP's model listing does not establish a Thunderbolt-rate link or every display mode for this ProBook.

Direct USB-C display baseline

The notebook specification documents USB-C DisplayPort Alt Mode, making one direct display the clean isolation test before replacing a supported dock.

Check first: Use a known video-capable USB-C adapter or cable. A direct result does not certify another multiport dock.

Connect displays and power

Computer cable
Plug the manufacturer host lead straight into the ProBook's USB-C video port. Remove adapters, extensions and a second hub while establishing the baseline.
USB-C Dock G5 displays
Connect monitors at the rear HDMI or DisplayPort sockets. The front Type-C connector is documented for data and accessory power rather than video.
Thunderbolt G2 displays
Use the dock's documented DisplayPort, downstream USB-C/Thunderbolt or VGA route. An HDMI monitor needs an active adapter because the dock has no HDMI socket.
Power
Use the supply for the exact dock package and verify Windows charging. Compare with the ProBook's original 45 W or 65 W adapter when charging is absent or performance falls.

First recovery steps by symptom

Nothing on the dock works

  1. Confirm the exact G5 or 2UK37AA dock and its matching supply.
  2. Reconnect the specified host cable directly to the notebook's USB-C video port.
  3. Test one known-good USB accessory, then update only HP-listed notebook and dock components.

USB works but a display is blank

  1. Strip the setup back to a single monitor, its known cable and the matching input.
  2. Run 1920×1080 at 60 Hz from a documented rear output, then compare a direct notebook-to-monitor connection.
  3. When the direct path succeeds, restore the dock and prove that first screen before introducing another.

Charging is slow or absent

  1. Read Windows power status, then match the dock label to its power brick.
  2. Reconnect the computer lead and temporarily unplug power-hungry peripherals.
  3. Try the notebook's original 45 W or 65 W HP adapter; restored charging isolates the fault to the dock power path.

Still unknown: HP's exact dock lists do not establish the ProBook's installed graphics configuration, effective DisplayPort bandwidth, negotiated USB-C power, dock firmware, adapter direction, mixed monitor modes or sleep/wake behavior. The Thunderbolt G2 listing is legacy compatibility evidence, not proof of Thunderbolt bandwidth on this host.

Compare documented options · Check screens and power

Applies only to HP ProBook 450 G6, not 450 G5, G7 or 450 G6 variants with a different regional configuration. HP's July 2020 and September 2019 documents were reviewed with the exact-model support page. Sources reviewed 19 September 2026. Manufacturer documentation is not a Connect Your Dock hardware test.

Exact manufacturer references

Dock options for this exact device

Manufacturer guidance

HP USB-C Dock G5

4K and three-screen modes depend on the host’s DisplayPort capability and dock display mode.

Screens
Confirm combined screen modes
Charging
Up to 100 W; G5 supply is 120 W. Confirm the laptop requirement.
Software
No DisplayLink for video
Cables
Dock USB-C host cable + HDMI or DisplayPort screen cables.
Check my screensSetup & cables
Full conditions & sources

HP’s July 2020 datasheet names this model. Recheck current operating-system and firmware support. Confirm combined display modes and charging independently.

Manufacturer guidance. This is a shortlist, not a test of your complete desk.

Manufacturer guidance

HP Thunderbolt Dock 120W G2 / 2UK37AA

Legacy model: verify current firmware, OS support, included cable and power supply.

Screens
Confirm combined screen modes
Charging
Up to 100 W host power from the 120 W supply; not the 230 W or combo-cable variant.
Software
No DisplayLink for video
Cables
G2 host cable + DisplayPort cables or correctly directed video adapters. No HDMI socket.
Check my screensSetup & cables
Full conditions & sources

HP’s 2019 compatibility table covers this model or its stated generation group. This is legacy manufacturer guidance; current firmware, OS and combined screen modes need checking.

Manufacturer guidance. This is a shortlist, not a test of your complete desk.

HP G5: ports, power and screen checks

CheckFor this setup
Computer cableThe attached G5 USB-C cable goes to the laptop’s video-capable USB-C port.
Screen cablesUse rear HDMI or DisplayPort. The front USB-C socket is for data and 15 W accessory power, not a monitor.
Two Full HD screensListed in every G5 bandwidth column, assuming the host supports the display count. Confirm the exact laptop configuration and OS.
Two 4K60 screensRequire DP 1.3/1.4 in high-resolution mode, or DP 1.4 with DSC in the default mode. A USB-C socket alone establishes neither.
Three 4K60 screensOnly listed with DP 1.4 DSC in high-resolution mode; all three rear video outputs are used.
PowerUp to 100 W to supported HP hosts. A workstation requiring more needs separate supported power.

See the cable arrangement and troubleshooting steps

Thunderbolt G2 120W: an additional documented option

CheckFor this setup
Model match2UK37AA / 120 W version. Do not substitute the 230 W or combo-cable charging claim.
Monitor outputsTwo DisplayPorts, rear USB-C video, rear Thunderbolt and VGA. There is no built-in HDMI socket.
HDMI screenNeeds a correctly directed video adapter rated for the target mode. An HDMI cable alone does not fit this dock.
Two-screen evidenceThe manufacturer lists the model/group. A combined display mode is a separate check.
ChargingUp to 100 W to the host; keep the laptop’s own charger available for verification.

See the cable arrangement and troubleshooting steps

Device-specific limits

HP’s July 2020 datasheet names this model. Recheck current operating-system and firmware support. Confirm combined display modes and charging independently.

Before choosing a dock

  1. Match the entire device name, including processor, generation and chassis variant.
  2. Record your screen models, inputs and intended resolutions and refresh rates.
  3. Confirm those screens work together through the proposed dock outputs.
  4. Check the supplied power adapter, laptop charging requirement and software permission.

Read the relevant setup guide · Fix a connection problem

Related devices