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Cable Matters 201048 USB-C to 4K HDMI Multiport Adapter with Power Delivery
Symptom: The Multiport Adapter is not functioning properly on a Windows computer with Thunderbolt 3. Symptoms include no video, flickering video, and an unstable USB peripheral connection.
Solution: Update BIOS, firmware and drivers from the manufacturer website. For more details, refer to articles below:
Symptom: The Adapter is not recognized / one or more ports are not functional
Unplug all cables and peripherals, restart the computer, and then reconnect everything.
Symptom: Computer is not charging or charges at a reduced speed
This Multiport Adapter can pass up to 60 watts of power to the computer. Some computers require more than 60 watts. The power may be disabled through USB-C or charge at a reduced speed when 60 watts of power is provided.
Use the original AC power adapter and USB-C cable that came with your computer, when charging with this Multiport Adapter. Third party chargers may not be up be fully compliant with the USB specification. They may not charge properly or potentially damage to the Multiport Adapter or your computer.
DO NOT unplug the power to the Multiport Adapter while in use. This will interrupt the signal and may cause connection issues.
Symptom: Unstable USB connection when using a peripheral such as an external hard drive
This Multiport Adapter can be bus-powered by the USB-C port. Some USB peripherals may require more power than the USB-C port on the computer provides. This is more likely to happen when the Multiport Adapter is operating under full load with all ports in use. In this case, connect a USB-C cable and a USB-C AC power adapter to provide additional power.
Do not daisy chain another USB hub to this adapter through USB-A ports in order to connect more USB prepherals. It may cause overload on the USB system bus or the power adapter.
Symptom: HDMI does not work at full 4K 30Hz resolution.
The Multiport Adapter supports resolution up to 4K at 30Hz. You will need a 4K rated computer, HDMI cable, and display to take advantage of 4K video.
Symptom: laggy mouse and missing keystrokes when connecting wireless mouse/keyboards to USB 3.0.
The 2.4 GHz band is a widely used unlicensed radio frequency band for devices such as wireless routers, as well as wireless PC peripherals such as a mouse or keyboard.
Though USB 3.0 has a 5 Gbit/s signaling rate, the noise from USB 3.0 data spectrum can be high in the 2.4–2.5 GHz range. This noise can radiate from the USB 3.0 connector on a PC platform, the USB 3.0 connector on the peripheral device or the USB 3.0 cable. If the antenna of a wireless device operating in this band is placed close to any of the above USB 3.0 radiation channels, it can pick up the broadband noise and may result in a drop in throughput on the wireless link.
The resolution is to use a USB 2.0 extension cable to connect the wireless mouse / keyborad dongle to USB 3.0 ports.
Symptom: Ethernet disconnects with certain Dell computers
Some Dell XPS and Precision models may contain a version of internal Wi-Fi adapters that causes the Ethernet connect to disconnect over USB-C. This issue can be resolved by lowering the power output of the onboard Wi-Fi adapter.
1. Navigate to Control Panel > Device Manager
2. Select Network adapters. Right-click on the Dell wireless adapter.
3. Select Properties. Click on the Advanced tab. Select Power Output and select 75%.
4. Disconnect the cables and Multiport Adapter, restart the computer, and reconnect everything.