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Compact HP dock adapter with RJ45 and VGA ports

HP

HP G7U78AA Dock Connector to Ethernet & VGA Adapter

SKU CH-HTCG-VJ73S MPN G7U78AA

Adds wired Ethernet and VGA video to a laptop through its dock connector

  • Connects wired network via dock side port
  • Adds external VGA display through same adapter
  • Single accessory replaces two separate cables
  • Designed for HP dock connector compatibility
  • Listed by manufacturer in June 2025

HP Dock Connector Adapter

The HP G7U78AA Dock Connector to Ethernet & VGA Adapter adds wired network and analogue video output to compatible HP docking stations. It is aimed at professionals who need a stable RJ45 connection and a VGA port for legacy displays or projectors.

Installation and common issues

The adapter plugs directly into the side dock connector on supported HP docks with no drivers required for basic operation. The main issue is attempting to use it with a non-compatible dock or laptop port, which will result in no signal or network link.

Suitable users and alternatives

This suits office workers and IT teams deploying HP dock ecosystems that require both Ethernet and VGA connectivity from a single side port. Buyers whose docks lack the proprietary side connector or who need digital video outputs such as HDMI or DisplayPort should look at a different solution.

How it compares

Measured against everything we stock in USB-C & Laptop Docking Stations, at today’s prices. Recalculated every night.

Price $57.99
Cheaper than about 63% of the 1,971 comparable items (median $81.99).

Specifications

Product
Brand nameHP
Model nameG7U78AA
Size & build
Shipping weight0.18 kg
Package size51 × 51 × 51 mm

Questions about this item

How can I confirm the G7U78AA is passing a wired network signal to my laptop after I connect it?

Plug the RJ45 cable into the adapter and watch for the link lights on the port; then open your network settings to verify an active Ethernet connection with an assigned IP address.

What does the HP G7U78AA package contain and what extra cables might I need?

The box includes the side-dock adapter with integrated RJ45 and VGA ports; you will need to supply your own Ethernet patch cable and a standard VGA monitor cable.

Which version of this adapter should I choose if my notebook only has the proprietary HP docking connector?

The G7U78AA is the single model that fits HP side-dock connectors, providing both RJ45 Ethernet and VGA video from that one interface.

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